Connected on 2015-03-16 10:30:00 from Contra Costa County, California, United States
- Bugscope Team making presets for today's session
- Bugscope Team we are ready to roll
- Bugscope Team huh
- Bugscope Team It's like it doesnt see you as admin Scot
- Bugscope Team try on your computer
- Bugscope Team k
- Bugscope Team Good morning!
- Bugscope Team this is Scot, on my office computer
- Bugscope Team welcome to Bugscope!
- Teacher Good morning!
- Bugscope Team this is a female mosquito
- Teacher The students are looking at mosquitw
- Bugscope Team hi!
- Bugscope Team you can see her eyes and one antenna, on the left
- Bugscope Team the lefthand antennae, which would be on the right, is broken off
- Bugscope Team you have control of the microscope and can change the magnification, focus, and contrast/brightness
- Teacher Curling up from the bottom is a leg?
Bugscope Team that is the proboscis, there in about the middle, curling off to the right
- Bugscope Team at the tip of the proboscis, you can see the tip of the fascicle, which is what the cutting/bloodsucking components are
- Bugscope Team the background, with the bumps/holes, is carbon tape we use to stick the insects on
- Bugscope Team the things that may look like eyes with a stick coming out is actually part of the antenna
- Bugscope Team awesome!
- Bugscope Team this is the underside of a spider!
- Bugscope Team the eyes are the bumps at the top of the head. they dont have compound eyes like the mosquito did
- Bugscope Team this is the scary part
- Teacher what ar we looking at in this picture?
- Bugscope Team their eyes are more for seeing variations of light. it's not as good
- Bugscope Team the two large burrito looking like things are its fangs
- Bugscope Team the fangs are folded in towards it's mouth near the bottom
- Bugscope Team the things that look like droppers are the palps
- Bugscope Team females have small palps and males have large ones
- Bugscope Team it has lots of setae on it -- what look like hairs
- Bugscope Team the setae are sensitive to vibration
- Teacher What do they do?
- Teacher What are palps?
Bugscope Team they can move around food or to help taste things
- Bugscope Team males use the palps, as well, during mating
- Bugscope Team I think spider palps are also involved in mating
- Bugscope Team yay Daniel!
- Teacher *what are those hairs
- Bugscope Team if we look at the hairs up close -- you can bring the magnification up if you would like -- we will see that they are 'plumose,' kind of like skinny pine trees. at least some of them will be that way
- Bugscope Team the spider has lost one of its legs, on the left there
- Teacher What are they hairs?
Bugscope Team the hairs are sensory, they can be mechnosense, feeling changes in vibrations in the air, or elsewhere, or propriosense (a sense of self) so that they can determine where their own appendages are
- Bugscope Team spiders can let their legs go, from their bodies, if they sense venom within them -- that is, if another spider has bitten them
- Bugscope Team they can choose which legs to let go. it is called autotomy.
- Bugscope Team these are the chelicers, or chelicerae, that hold the fangs at their tips
- Teacher Why are some poisoness and how?
- Teacher The students are getting a kick.
Bugscope Team sweet!
Bugscope Team awesome!
- Bugscope Team they are probably getting grossed out a bit
- Teacher totally. we are clapping when we get excited.
- Bugscope Team all spiders, I believe, produce venom
- Teacher a question from the students
- Teacher Are some poisoness?
Bugscope Team they have venom. Venom is when something is injected into another thing like a spider does to you or another insect/animal. Poison has to be ingested or absorbed, like a poison dart frog is poisonous. The spider here is venomous, but i dont know how it would affect a person
- Teacher What do they use the venom for?
- Teacher How do they have poison? Where is it located?
Bugscope Team They have venom glands within their bodies, perhaps in the chelicers. I am not sure just where the venom is.
Bugscope Team If they are poisonous, it'd most likely be systemic, and throughout the body.
- Bugscope Team Spiders inject venom into their prey, and the venom often paralyzes or otherwise immobilizes the prey. It also starts to dissolve the internal organs of the prey so that the spider can suck it all up like a protein shake.
Bugscope Team The bigger ones also tend to go after dwarves and hobbits. :)
- Bugscope Team do you want to look at the trapjaw ant?
- Bugscope Team oh this is cool -- the bee!
- Bugscope Team see the little dome on the top of the back of its head?
- Bugscope Team here we see the antennae, forming a V over the mouthparts, and to the sides of the head we see the compound eyes
- Teacher They said it looks like he has a mustache
Bugscope Team haha Yeah! Like a food filter.
- Bugscope Team the dome on the top of the head at the back is one of three. the other two you can barely make out. those are the ocelli, which are simple eyes.
- Teacher I'm typing for the students
- Bugscope Team lobsters are kind of like a bug, as much of one as a rolypoly is
Bugscope Team haha Yeah! Lobsters are crustaceans like crabs and shrimp, and rolypolies are actually crustaceans as well!
- Bugscope Team there was a story recently in the news about the ancestor of lobsters that is about 7 feet long
- Bugscope Team this is the head of a cute little ladybug larva
- Teacher What are we looking at now?
- Bugscope Team the head is to the right, and it has a little bump that looks like an eye but its a stubby antenna
- Bugscope Team the eyes are quite small, like little bumps, called stemmata\
- Teacher Do you know the biggest insect?
Bugscope Team the beetles called Goliath beetles are sometimes said to be the largest insects. some people would say, also, that stick insects, which may be 21 inches long, are the largest
Bugscope Team There are absolutely huge (and scary!) ones in the fossil record. One dragonfly fossil had a wingspan of over 60cm (24 inches)! http://news.ucsc.edu/2012/06/giant-insects.html
Bugscope Team There's a titan beetle that gives the goliath beetle a run for its money, and the giant weta (a really large cricket from New Zealand) would be one of the heaviest
Bugscope Team If you follow science news, there was a report of the discovery of the fossil of a giant arthropod similar to a lobster that ate like a baleen whale. This monster grew to be about 2m long (6 feet)!
Bugscope Team Here's an easy to understand summary: http://www.nytimes.com/2015/03/17/science/fossil-tells-of-520-million-year-old-creature-like-a-giant-lobster.html?_r=0
Bugscope Team and here's the scientific paper: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature14256.html
- Bugscope Team all times...
- Bugscope Team they have a comb like this on each of their forelimbs
- Bugscope Team this is one of the built-in combs that ants use to help clean their antennae, so they are presentable at all time
- Teacher So its not an antennae? Is it near one?
Bugscope Team you can go to the head to see the antennae
Bugscope Team it is not very close to the head, I think, right now
- Bugscope Team good job driving!
Bugscope Team you can click on the head, and the microscope will center that for you
- Bugscope Team this is a long, skinny ant from Brazil -- a trapjaw ant.
- Teacher What do insects eat?
- Bugscope Team some insects only eat certain things, and some eat anything that is even remotely edible
- Bugscope Team some ants -- the leafcutter ants -- cut leaves, of various types, and grow different fungus on each type of leaf to eat. they are farmers.
- Bugscope Team I think the trapjaw ant people told us that this species of ant eats whatever it wants
- Bugscope Team some trapjaw ants specialize in eating springtails
- Teacher or ants?
Bugscope Team ants can eat a variety of things, dependent on species. Leaf cutter ants eat fungus mostly, there are ants that eat seeds, and a number of ant species are generalist , and some are predaceous eating other insects/arthropods
Bugscope Team there are also ants that tend to aphids/other sap feeding insects, and feed on their exudate (honeydew)
- Bugscope Team springtails are tiny bugs you find in leaflitter, and they are not, I believe, considered insects
Bugscope Team they are no longer considered insects
- Bugscope Team what shape is this?
- Teacher What insect is this?
- Bugscope Team this is a lacewing. their larvae eat lots of insects that are harmful to gardens and to plants in general\
- Bugscope Team lacewing larvae are like ladybug larvae; they like, especially, to eat aphids
- Bugscope Team as adults they are said to eat nectar and pollen, from flowers, and they also feed on honeydew, which is produced by aphids
- Bugscope Team here we can see that the honeybee has jaws, or mandibles, that open side to side, like a gate
- Teacher This one looks like his tongue is sticking out?
Bugscope Team the part that is hanging down is called the labrum, and it covers the tongue, which is called a 'glossa.'
- Bugscope Team aphids have little dual exhaust pipes, called cornicles, or siphuncles, that sometimes produce honeydew, feeding the ants that farm them
Bugscope Team I think the cornicles are defensive. The honeydew comes out of the anus.
- Bugscope Team those are scratches
Bugscope Team on the wing
- Bugscope Team these resemble dragonfly wings
- Teacher How do insect, like ants, climb trees?
Bugscope Team they have tarsal claws, and the texture of a lot of "smooth" surfaces are actually fairly rough, and so for things of the size of insects, they can latch on to those tiny roughness on the surface.
- Bugscope Team we can see where the wings are fractured -- they are very thin
- Bugscope Team to the left and down we see, for comparison, the wing of a moth
- Bugscope Team otherwise, to the left, we see little craters in the doublestick tape the insects are stuck to
- Bugscope Team yay!
- Bugscope Team this is the trapjaw ant
- Bugscope Team and this is a beetle
- Bugscope Team you can see the beetle's antennae, with little lobes near the ends
- Bugscope Team pollen!
- Teacher The students loved it!
- Bugscope Team thanks for using bugscope with us today
- Teacher We have to sign off now for recess.
Bugscope Team Thank you for connecting with us!
- Teacher Thank you so very much!
- Bugscope Team Thanks! have a good recess.
- Bugscope Team I will email the link to your transcript.