Daniel Warren Elementary School - Rye Neck UFSD
Session 2010-134

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Transcript

Connected on 2011-05-10 08:00:00 from Westchester, New York, United States

• 7:23 am
• Bugscope Teamgood morning!
• Bugscope TeamWelcome to Bugscope!
• Bugscope TeamSample is being coated and I'll put it in the 'scope soon.
• 7:28 am
• Bugscope Teambad news is the painted lady chrysalises never got dry inside, so we could not use them.
• Bugscope Teambut we have two mealworm pupae, a darkling beetle, a spider, one or two wasps (I cannot tell if one is a fly or fly mimic, yet), some assassin bugs, and a backswimmer
• Bugscope Teamnow you can see that the sample is pumping down in the specimen chamber
• 7:34 am
• Bugscope Teameven the pupae were quite juicy, so I chose the ones that were most dry
• Bugscope Teamnow we are waiting for the vacuum to get better so we can turn on the electron beam
• Bugscope Teamvacuum is getting closer...
• 7:40 am
• Bugscope Teamcan you see the chat?
• Bugscope Teamit looks like everyone is logged in as a Teacher
• Bugscope Teamhello!
• Bugscope TeamI see that there was no Student choice...
• 7:46 am

• Bugscope Teamis anyone there?
• 7:51 am

• 7:57 am

• Bugscope Teamgood morning, Linda!
• 8:03 am
• Bugscope Teamcan you see the chat?

• TeacherGood morning.
• TeacherYes we can.

• Bugscope Teamwe are now ready to roll
• TeacherWhat will we look at first?
• Bugscope TeamI am sorry, however, we were not able to use the chrysalises

• Bugscope Teamyou can control the microscope and take it to whichever preset we have prepared for you that looks good to you
• TeacherWhat kind of beetle is this?
• 8:08 am
• TeacherWhy are the pictures only showing up in black and white?
  Bugscope Teamthese are live images from the electron microscope, which uses electrons rather than light to collect images
• Bugscope Teamthis is what happens when the mealworms turn into pupae and then become adults
• Bugscope Teamthe electrons that bounce back from the surface of the sample come to the detector as signal -- so there is no color
• Teacherhow long does it take for a mealworm to turn into a beetle
  Bugscope Teamit can take as few as 30 days
• Bugscope Teamthe timing of the full metamorphosis depends on environmental factors, in large part. it can go fast or slow
• Teacherdo all mealworms shed their skin?
  Bugscope Teamthey go through a series of molts, and they shed their cuticle each time

• Bugscope TeamI read that they can go through perhaps 9 to 20 molts before they become pupae, which is the stage before this
• Bugscope Teamnow we are looking at the antenna base, to the left, and one of the palps, in the middle
• 8:14 am
• Bugscope Teamthe antennae collect all manner of scents that the beetle uses to sense its environment, in addition to its eyes and its sense of vibration (sound)
• Teacherwhat is a palp?
  Bugscope Teamusually there are four palps, two mandibular and two maxillary, and they help the insect taste and manipulate its food into its mouth
• Bugscope Teamthe palps have sensory structures on them as well, many related to 'tasting' -- determining if they want to eat what they are touching
• Bugscope Teamthey are kind of like tastebuds, or little tongues outside of the mouth, in a way

• Bugscope Teamplease feel free to click on any of the presets to look around what is on today's stub

• Bugscope Teamyou can see one of the beetle's claws to the left, there
• Bugscope Teamyou centered nicely on the claw

• Bugscope Teamthis is one of the two pupae we could put in the 'scope
• Teacherwhat is the magnification?
• Bugscope Teamso this is the stage after the mealworm has decided to go ahead and turn into an adult
• Bugscope Teamthis is only 44x at the 'scope

• 8:19 am
• Bugscope Teamthe mealworm can be a pupa from 3 to 30 days

• Bugscope Teamwhile it is a pupa it is becoming a beetle inside

• Teacherwhat are the parts that look like petals
  Bugscope Teamthose are the pre-legs; the legs of the beetle are forming inside
• Bugscope Teamthe mealworms we see at stores are kept in that larval stage abnormally long
• Teacherhow do the pre-legs transform into legs
  Bugscope Teamwhat is happening inside is that genes have been activated that cause the body to change and grow into a new form
• Bugscope Teamthe pupa looks less and less wormlike as the beetle forms inside its case
• 8:24 am

• Bugscope Teammealworms go from eggs to the caterpillar like things we see most commonly to this form, the pupa, which is comparable to a chrysalis, to the beetle
• Teacherwhere are the eyes
  Bugscope TeamI don't believe they have eyes at all at this stage. They may be able to sense light, and heat, and they can sense if you touch them
• Bugscope Teamthis is a vulnerable stage for the mealworm/beetle
• Teacherhow do they breathe?
  Bugscope Teamif we were to drive around a bit we might find tiny pores called spiracles that insects use to breathe through
• Bugscope Teaminsects do not have lungs like we do; they have what we consider a more primitive way of getting oxygen to their organs
• 8:29 am
• Bugscope Teamand we are lucky they are not more efficient at breathing, because if they were they would become larger
• Teacherwhere is the mouth?
  Bugscope Teamthere is not really a mouth at this stage; it is forming inside the pupal case
• Teacherdo they breathe in the same way when they are adults
  Bugscope Teamyes they have spiracles; we can go look for them on the beetle since we did not see any on the pupa -- often they are on the sides of the body

• Bugscope Teamon some insects the spiracles are readily apparent, but not here...
• Teacherwhat do you suggest we look at now
• Bugscope Teaminsects can open and close the spiracles, like holding their breath, and they do that as well to ensure that they do not dry out; they need to conserve water inside of the their shell

• Bugscope Teamlet's go to a fly and see if we can find spiracles
• 8:34 am
• Bugscope Teamthis is very close on the fly's claw --- 2300x. and we are looking at the tiny hairs called tenent setae that help them stick to surfaces
• Bugscope Teamyou can see two scales from another insect, and a pollen grain
• Bugscope Teamthis is one of the spiracles on the thorax -- the 'chest'
• Teacherwhat do flies eat
  Bugscope Teammany flies eat sweet liquids, and they may spit up on their food to dissolve and predigest it before sucking it up
• Bugscope Teamsome flies, however, have slashing/cutting mouthparts (like horseflies and deerflies), and they can cut your skin so you bleed, and then drink that
• Teacherhow many different types of flies are there
  Bugscope Teamthere are thousands of species, and not all have been found and named
• Teachercan we see the fly's eye
• Bugscope Teamthere are said to be about 6500 species of fly

• 8:39 am
• Bugscope Teamflies have two wings, whereas wasps and bees have four
• Bugscope Teamthis is one of the compound eyes of the fly we had just looked at
• Bugscope Teamit is dried and caved in a bit
• Teacherwhat are the little round parts
• Bugscope Teameach individual facet of the eye, called an ommatidium, is a lens
• Bugscope Teamso the round parts are like tiny eyes themselves
• Bugscope Teamif you had compound eyes you would have better peripheral vision -- you would be able to see more without moving your head
• Bugscope Teaminsects can't move their eyes around like us so they help make up for that by having these bulging eyes that stick out and can see all around them
• Bugscope Teamit would be very hard to get sunglasses
• Bugscope Teambut you would also have an advantage in being able to register changes in your visual field very quickly
• Bugscope Teamit is important, especially, in the insect world, to be able to see and respond quite quickly, so you do not get swatted, or eaten
• Bugscope Teamone of the things that might eat you is an ambush bug, or an assassin bug

• 8:45 am
• Bugscope Teamif you landed on the branch of a tree or a bush to rest, you might not notice an ambush bug quite close but disguised as a leaf
• Bugscope Teamthey can bite you and it will hurt some, but they don't have any venom
• Teacherwhat are ambush bugs
  Bugscope Teamthey are 'true bugs' that sneak up on other insects, pierce their bodies, and suck out the juice
• Bugscope Teamthis is the head of a tiny leaf-mimicking ambush bug
• Bugscope Teamsee its eyes, and the piercing mouthpart in the center of its head?
• Teacherwhat are all those bumps
  Bugscope Teamthe bumps are part of its disguise -- they distract the fly or other insect and keep it from recognizing the shape of the head, and the eyes
• Bugscope Teamthis is the tip of the proboscis, which is short and powerful
• Teachercan they change colors
  Bugscope Teamthese particular ones are multicolored, in yellows and browns
• 8:50 am
• Bugscope TeamI am not sure if they change colors or not
• Bugscope Teamthey come in different colors, but they aren;t chameleon like
• Teacherwhere do they live
  Bugscope Teamthey live all over, but particularly in plants where they can find insects to eat
• Bugscope Teamthey often are around plants that best suit their coloring to help them blend in
• Bugscope Teamsee the pollen grain next to the proboscis?
• Bugscope Teamthis is one of the forearms
• Bugscope Teamit's hard to see from here how it works, but it is like the forearms of a praying mantis

• Teacherdo insects that go through metamorphisis change their dna
  Bugscope Teamtheir dna does not change, but different genes in the dna they have are activated
• Bugscope Teamnow we can see the forearms from the side
• Bugscope Teamthey extend and then close down to grip their prey firmly while they pierce them with their proboscis
• Teacherwe're logging out in this classroom and will log back in at ten o'clock in another classroom. thank you
  Bugscope Teamcool see you soon!
• 8:56 am

• GuestMy students wanted to know what the long things are? also what is the pointy thing we are looking at now?
  Bugscope TeamH2 are you still there? I am sorry I missed seeing your query

• Guestyes, it is okay we passed the picture a while back. We will wait for the other class to come back. What are we looking at now?
• Bugscope Teamthis is a spider our secretary brought in
• Bugscope Teamyou can see its fangs, kind of scary looking

• GuestWhat kind of spider is this?
  Bugscope Teamwe did not recognize it, I am sorry -- it was red
• Bugscope Teamit was red before we coated it with gold-palladium so we could image it using the electron microscope
• GuestStill very neat
  Bugscope Teamnow I think we are back where we were when you asked about the long things. is this the place?
• 9:02 am
• Bugscope Teaminsects tend to have hairs all over them to help them feel things through their tough exoskeleton. They don't have sensitive skin like we do
• GuestYes, it was at the tip of the tubual thing in the middle there are long things possibly hairs on the tip?
  Bugscope Teamso that is the proboscis; we do not get to the see the sharp part that is inside that pierces the insect prey
• Bugscope Teamas Cate says, insects often have lots of sensory setae, which look like hairs to us, and even the entomologists call them hairs
• Bugscope Teamthere are mechanosensory (touch sensitive), chemosensory (scent, or smell-sensitive), and thermosensory (hot/cold sensing) setae, as well as setae that are adapted to stick to things

• GuestMy students are wondering about the thing on the right side of teh screen. Is that part of the forearm?

• Bugscope Teamyes that is one of the forearms, which are thick and powerful. you can see now that that the smaller part with the claw on the end is relatively small
• TeacherHi, Daniel Warren first graders are back.
  Bugscope TeamCool! Welcome back!

• Bugscope Teamthis is one of the other mealworm pupae
• 9:08 am

• Bugscope Teamthis is the shell the beetle hatched from after it metamorphosed

• Bugscope Teamthey are segmented like our joints are segmented so that they can bend their legs or abdomen and move around
• TeacherWhy does it have some layers?
• TeacherWhat part of the pupae are we looking at?
  Bugscope Teamthis is the head
  Bugscope Teamthat is the head

• Bugscope Teamthat pupa is older, and I am not sure if the beetle died inside or if it hatched out of the back

• 9:13 am
• TeacherWhy does it look like some parts are cracked?
  Bugscope Teamas the pupa gets older and the beetle matures inside, it becomes thinner and more fragile
• GuestWhat are teh pointy things coming from the mouth area?
  Bugscope Teamthose are the palps, I believe -- the accessory mouthparts
• Bugscope Teaminside is where everything is going on
• Bugscope Teamthe pupa is very vulnerable at this stage; it has to be very still while it is developing so it does not get eaten
• TeacherDo we see evidence of the antennas or feelers?
  Bugscope Teamthose longer parts we see may be the antennae, developing inside the pupal case
• Bugscope Teamthe pupa changes on the outside as the beetle takes shape within
• Teacheris there any evidence of the color?
  Bugscope Teamin the sem we are imaging with electrons not light, so we are reading a signal instead of lightwaves. We can false color after the picture is taken with some effort, but black and white is what we get with sem imaging.

• 9:18 am

• Bugscope Teamit is true that the pupa darkens as it becomes more mature; it starts out white and then turns more yellow

• Bugscope Teamthis one was yellowish, starting to become amber

• Teacherwhat is the color of the insect we are looking at?
  Bugscope Teamwhen they first pupate they are white and more worm-shaped
  Bugscope Teamthis is a little further along and was yellowish
• Bugscope Teamplease tell your students we are sorry not to have been able to use the painted lady chrysalises

• Bugscope Teammuch like this pupal mealworm, the chrysalis must retain water, and it does not dry easily
• Teachercan we please see a sideways view
  Bugscope Teamwe can only see them the way we mounted them in. it is slightly possible to see the side view but then all placements of the other presets would be moved as well
• Teacherokay

• 9:24 am
• Bugscope TeamI had mounted one on its side, but it was one of the soft ones, very juicy, and I was afraid it would not pump down in the vacuum chamber

• Bugscope Teamall of the samples we are looking at are under vacuum, and we have coated them with several nanometers of gold-palladium as well as stuck them to the stub with carbon tape and silver paint
• Teacherwhat type of beetle does the mealworm pupae turn into
  Bugscope Teamthe beetle we were looking at just before this was one of them
• Bugscope Teamthe beetle is called a 'darkling beetle'
• Teacherhow long does it take to turn into a darkling beetle
• Teacherhow long does it take to mount a sample, or how much work
  Bugscope Teamif the samples are dry it is fairly easy to make a whole sample in 15 or 20 minutes
• 9:29 am
• Teacherwhy does it look like it has ears off to the side?
  Bugscope Teamit seems like it acts as an armor plating to help protect its head.
• GuestHow long does it take a mealworm to turn in to a darkling beetle
  Bugscope Teamit varies. the mealworm can go through a number of molts (one source says 9 to 20) before it becomes a pupa, and it can be a pupa from 3 to 6 to perhaps 30 days before it hatches into a beetle.
• Bugscope Teamcoating the sample with gold-palladium takes about 10 or so minutes, and it takes 4 or 5 minutes for a dry sample to pump down inside the vacuum chamber

• Bugscope Teamsweet!
• Bugscope Teaminsects have a head, a thorax, and an abdomen, and they have six legs
• Bugscope Teammany times the legs have claws on them like this
• Teacherwhy is it so spikey?
  Bugscope Teamthe longer spikes help let the wasp know it is touching something; the tiny fringey hairs are called tenent setae, and they help the wasp stick to surfaces it cannot grab onto
• 9:34 am

• Teacherwhat is the claw used for?
  Bugscope Teamthey use their claws much like we use our hands -- to help them grasp things. but if you had only claws it would be hard to walk around, so they often have pads between or near the claws that help them stick -- like the rubber on the bottom of our shoes
• Teacheris the claw very sharp?
  Bugscope Teamit's pretty sharp but so tiny that we would barely feel it
• Bugscope Teamhere you can see, to the right, a single scale from a butterfly or wasp wing; it looks kind of like a long rippled potato chip
• Bugscope Teamif you look at a louse up close, it has tiny claws that it uses to cling to its host's hair
• Teacherwhat are the pointy stick like things off to the sides?
  Bugscope Teamthose are bristles, or setae, that serve to let the wasp know it is touching something

• Bugscope Teaminsects do not have skin, like we do, with nerve endings in it; they have shells like shrimp or lobsters (which are crustaceans, not insects). the shells are like armor, and if you were wearing armor you would not be able to feel things touching you
• 9:40 am
• Bugscope Teamroly polys are crustaceans as well
• Bugscope Teamso insects make use of what look like hairs, to us, to help them sense their environment: smell and taste and feel it
• Teacheris that the eye and why does it have hair like things around it
  Bugscope Teamthat is the eye, and it is a bit dented in, which happened after it died. As an insect dried out, it tends to shrivel. The hairs are just what you said they are-- hairs!
• Bugscope Teamthe hairs around the fly's eye help it sense the wind
• GuestWe have to go. Thank you so much!
  Bugscope TeamThank you!

• Teacherwhy does the eye look rubbery
  Bugscope Teamin a way it is kind of rubbery -- the chitin, which is what the shell of the insect, also called the cuticle, is made of, is kind of rubbery like our fingernails
• Teacherwhat is the purpose of the hairs around the eye
  Bugscope Teammost likely mechanosensory-- allows the fly to feel when things get close or bump into it. LIke cat or mouse whiskers

• Bugscope Teamsometimes insect hairs help them sense their own bodies, like if one of the insect's arms is bumping into its body, it can feel that
• 9:45 am
• Teacherwhy does the eye look like it has lines and things
  Bugscope Teamfrom a lower magnification they look like lines, but you can see closer up that they are small circular things that are called ommatidia. They each are a lens that can see something
• Teacheris it rubbery to protect the eye
  Bugscope Teamyes it needs to be able to flex a bit to absorb shock, instead of cracking. sometimes when insects die and become hardened, the eyes will crack

• Teachercan you magnify the eye even more
  Bugscope Teamyes we can. it has a film on it, some kind of fluid that we can see now
• Bugscope Teama lot of ground dwelling insects don't rely on their eyes, and in some cases, don't have them. They rely on their antennae/feelers to help them get around
• Teacherwhy do they need the compound eyes
  Bugscope Teammany compound eyes are bulbous, or dome-like, and if they are that way it means the insect can see more without having to move its head. that is very helpful if you are searching for food and also trying to avoid being eaten
• 9:50 am
• Bugscope Teamso the compound eyes give insects better 'peripheral vision,' meaning that they can see things that would normally, as we say, be in the corner of our eye, barely visible

• Bugscope Teamalso, compound eyes are like lots of tiny lenses that see almost the same thing, just from a different position
• Teacherwhat is the thing hanging down in the middle that looks like a trunk
  Bugscope Teamit is a proboscis, and it is much like an elephant's trunk. It drinks liquids out of it. In the case of the ambush bug, it drinks the blood of other insects
• Bugscope Teamthe insect can process the images that it picks up from all of those tiny lenses very quickly, and it can thus tell right away when something is attacking it, and get away, we hope
• Teacherare those antennae off to the sides
  Bugscope Teamyes they are!
• Teacherwhy is it called the ambush bug
  Bugscope Teamthey hang out on plants and flowers, usually with a coloring that blends in, and they wait for an insect to come by the plant and grab them to eat them
• Bugscope Teaminside the proboscis is another sharper part that penetrates the prey insect and helps suck out the blood, which in insects is called hemolymph
• Teacherwhat is the thing hanging off of the right eye
  Bugscope Teamthat is lint and maybe some dirt as well. The string is lint though

• 9:55 am
• Teacherthank you so much, we are going to sign in from another classroom at 11.
• Bugscope Teamcool. Thank you, see you soon!

• 10:01 am
• TeacherHi, we are back.
• Bugscope Teamhello!
• Bugscope TeamHello!
• Bugscope Teamthis is the ambush bug, and you can see that it is on the very edge of the stub inside the microscope
• Bugscope Teamit has a big hole in it because it was once in an entomologist's collection, on a pin

• Teacherwhere would you find this type of bug
  Bugscope Teamthey live on plants, in bushes, in places where they can blend into the background, and near flowers,often

• 10:06 am
• Bugscope Teamthis bug -- I switched on you -- is also a true bug, but this one lives on the water
• Teacherwhat are we looking at
  Bugscope Teamthis is a backswimmer
• Bugscope Teamand this is where the proboscis, which is much like that of the ambush bug, and used for the same purpose, is attached to the head

• Teacherwhat do you mean by 'true bug'
  Bugscope Teamthey are a type of insect, that are often mistaken for beetles, that have a trunk called a proboscis that they use to drink liquids from. Cicadas are a true bug

• Bugscope Team'true bugs' all have piercing/sucking mouthparts like this. stinkbugs, which are in many of the US states now, are true bugs too
• Bugscope Teamthis is the mealworm pupa

• Bugscope Teammealworms start as eggs, and when they hatch they come out as those long worm/caterpillar-like things we are used to.
• Bugscope Teamthey eat and eat and grow and grow, and they molt as they grow so they don't split their exoskeleton open from being so big
• 10:11 am
• Teacherhow long does it take to turn into a pupa
  Bugscope TeamThey are a larva for around 10 weeks. they are a pupa generally for around 18 days.
• Teacherwhat are the petal-like parts
  Bugscope Teamthose are the legs. They are bent in towards the body. The bent parts are similar to our knees

• Bugscope Teamall insects have a head, and a thorax (that has the legs attached to it), an abdomen, and six legs

• Teacherwhat are the dangling parts
  Bugscope Teamthose are the tarsi (singular is tarsus). They are comparable to feet
• Bugscope Teamadult insects often have wings, and once an insect has wings it does not molt anymore
• Bugscope Teamonce it has wings it is an adult, is another way of putting it

• 10:16 am
• Teacherwhere are the antennae
  Bugscope Teamthey may be the long things that point downwards from the head; in this stage the insect is vulnerable because it is changing into the adult beetle
• Teacherhow does the pupa breathe
  Bugscope Teamthey have spiracles, which are little breathing holes, along its body. They are all connected to a trachea that runs along the body, supplying oxygen where needed
• Bugscope Teamthe pupa is kind of a protective case that holds the mealworm as in completely changes shape into a beetle
• Bugscope Teaminsects can open and close their spiracles, so for example if they fall into the water they can close them and not drown, for at least awhile

• Teacherwhere are the mouth and the eyes
  Bugscope Teamthe mouth is at the bottom of the head, with two palps on either side of it, but it is not functional as a mouth at this stage; I don't believe there are eyes, although the shell becomes more and more translucent, and the beetle insect can likely sense light at a certain point in development

• Bugscope Teampollen!
• 10:22 am
• Bugscope Teamwe don't know what kind of pollen this is, may a grass or ragweed, but there are many that look like this
• Bugscope Team'maybe' a grass or ragweed...

• Bugscope Teamthe eye facets are called ommatidia
• Bugscope Teama single one -- a single lens -- is called an ommatidium
• Bugscope Teameach one collects an image that is processed in the fly's brain so it can get a very good idea of what is around it
• Teacherwhat are the bumps on each of the lenses
  Bugscope Teamthey looks like areas where a liquid dried on them
• Bugscope Teamyes that stuff would not normally be there -- the fly would wipe it off
• 10:28 am
• Teacherwhat is this hairy part
  Bugscope Teamyou can see there are hairs of different sizes, where most of them are for allowing the fly to feel when something is coming near it or bumps into it
• Bugscope Teamright now we are looking into a spiracle, which is one of those openings through which insects breathe
• Bugscope Teamthe long frond-like hairs are there to keep particles out of the spiracle
• Bugscope Teamits wings are south of here
• Bugscope Teamflies have two wings, and bees and wasps and dragonflies have four wings
• Teachercan we please see a close up of a wing
• Bugscope Teambut when bees and wasps fly, they hook the fore- and hindwings on each side together
• 10:33 am
• Teacherhow fast do flies beat their wings
  Bugscope Teamit varies -- 400 to maybe 1000 beats per second
• Teacheris this a wing?
  Bugscope Teamyes it is! it has tiny setae on it called microsetae, or microtrichae
• Bugscope Teammany different types!
• Teacherare there different types of flies
  Bugscope Teamyes there are about 6500 species of flies
• Bugscope Teamfruit flies are the tiny ones that like to be around overripe fruit
• Teacherhow long do flies typically live
  Bugscope Teamgenerally a few weeks to more than a month
• Bugscope Teamhorse flies can bite you and they get to be decently big
• Bugscope Teammany flies, like houseflies and fruit flies, have sponging/sucking mouthparts
• Teacherwhy do the wings have the setae on them
  Bugscope Teamthe setae may help strengthen the wing, help with thermoregulation (staying the right temperature), and also provide surface area to help catch the air
• Teacherhow long can they fly without taking a break
  Bugscope Teamhouseflies can easily travel 1-2 miles
• 10:40 am
• Bugscope Teamyoung healthy adults can fly for 500 minutes, so for several hours
• Teacherhow long approximately would it take a fly to travel that distance
  Bugscope Teamit would take only about 15 minutes; houseflies are said to fly about 4.5 miles per hour
• Teachercan we please look at the spider fang
  Bugscope Teamjust a sec and I will find it

• Teachercan you zoom into that pore
• Bugscope Teamd'oh I was just typing what Cate said
• Bugscope Teamlike a needle
• Teacherwhat kind of spider is this
  Bugscope Teamit was reddish in color but we are not sure what kind it is
• 10:46 am
• Bugscope Teamspiders inject venom into their prey that dissolves the inner organs, and the spider is immune to that venom, apparently, because she/he sucks it all up again like a milkshake
• Teacherwhat do spiders eat
  Bugscope Teaminsects or other spiders. They bite them with their fangs and inject their venom which will liquify the insides of their victim. Then they will use the fangs again to drink up the contents like a milkshake
• Bugscope Teamspiders can sense when another spider has bitten them, and if the venom is in danger of getting to the spider's body through one of the legs, it can make that leg fall off
• Teacheron that note, we are off to lunch. thank you so much
• Bugscope Teamhaha
• Bugscope TeamThank You!
• Bugscope Teamhttp://bugscope.beckman.illinois.edu/members/2010-134
• Bugscope TeamBye!