Connected on 2011-10-13 19:00:00
from Alameda, California, United States
- 6:13 pm
- Bugscope Teamwaiting for vacuum
- Bugscope Teamvery close now
- 6:18 pm
- 6:24 pm
- 6:29 pm
- 6:34 pm
- 6:40 pm
- 6:46 pm
- 6:52 pm
- Bugscope Teamwe are ready to roll
- 7:01 pm
- Bugscope TeamHi Danielle!
- Bugscope TeamWelcome to Bugscope!
- GuestThank you-Im in the education program at WSU-wanted to check this place out
- Bugscope TeamHey Cool.
- Bugscope TeamMichele Korb should be on any minute.
- Bugscope TeamBut please let me know if you have any questions about this.
- GuestOkay thanks
- Bugscope TeamShe is at California State -- East Bay.
- Bugscope TeamHello CSUEB!
- Bugscope TeamWelcome to Bugscope!
- GuestCool-so just figuring out how to navigate this site... the main picture is an antenna from what kind of bug?
Bugscope Teamits a closeup of the antenna of a centipede
- GuestOhh wow
- Bugscope Teamoops 'it's a closeup'
- 7:06 pm
- Bugscope TeamCSUEB has control right now, but Michele -- Dr Korb -- may be talking with her class at the moment
- TeacherYes I am ")
- TeacherHi Scott and Daneielle
- GuestHello :)
- Bugscope TeamDanielle is from WSU and just dropped in.
- GuestI can think of lots of little boys that would think this is so cool
- TeacherWhat is WSU?
- GuestWashington State University
- GuestIm an elementary education major
- Bugscope Teamyou can see the centipede's retention plan
- Bugscope Teamthose little toothlike elements that hold its prey while it bites it and injects venom
- Guestthats amazing
- Bugscope Teamyou can see one of the pores in the lower fang
- TeacherRock on Danielle!!
- Bugscope Teamthe pore is to the far right
- TeacherWhat is the stringy stuff?
- Guestso centipedes are the bad ones, i always get them mixed up with milipedes
- Bugscope Teamfungus
- 7:12 pm
- Bugscope Teamcentipedes have one set of legs per segment whereas millipedes have two sets per segment
- TeacherWhat are teh dome shaped things at the bottom of the image?
Bugscope Teamthat's the retention plan
Bugscope Teamwhen the centipede pulls its prey toward its mouth, those toothlike things help grip it
- Bugscope Teamspiders have those as well, and praying mantises have them on their forearms
- Bugscope Teamor something quite similar
- Guestare those root like things fungus too
Bugscope Teamyes we will see more of that
- Guestdoes the fungus naturally grow on them?
Bugscope Teamonce an insect/arthropod dies it will start to rot, and the fungus will take over
Bugscope Teamso yeah I guess it is natural
- Teacherhi my name is kim i am a student
Bugscope TeamHi Kim! Welcome to Bugscope!
- Guestohh, makes sense
- GuestHello Kim-me too
- 7:17 pm
- Bugscope TeamKim please let me know when you have any questions.
- Bugscope Teamthis is really pretty cool -- I have seen blade-like teeth on the inner curve of a claw before
- Bugscope Teamlikely this beetle cannot climb well because it does not have sticky hairs (tenent setae) on little pads on its tarsi.
- Bugscope Teamthe forearm segments are called tarsi
- Teacherwhat is the highest magnification?
Bugscope Teamthis 'scope will go over 200,000x
- Bugscope Teamwhen we use it for research that is about the extent of a publishable images
- Bugscope Teamwhen we use the microscope for Bugscope we have the specimens relatively far from the pole piece, where the electrons come from, so we don't go as high in mag
- Guestso we are looking at a mite on the beetle?
Bugscope Teamthe mite is only in one place I could find earlier
- Bugscope Teamthis is the face of a spider
- TeacherHi there--Marcia here now.
Bugscope TeamHi Marcia!
- Teacher:) Cool job.
- Bugscope Teamyou can see four of its eyes, to the top left
- 7:22 pm
- TeacherSo are we looking at hair?
Bugscope Teamlots of insects/arthropods have what looks like hair
- TeacherWill you please zoom in on the four eyes? We think we know, but are unsure.
- Bugscope Teamthe hairs is called setae, or trichae, or bristles, or spines...
- TeacherDude! We had a big exclamation over here :)
- Bugscope Teamactually we can see that there are two eyes here, one behind the other
- TeacherWell, we know it's not satay ....hahaha
- Bugscope Teamoops 'the hair is called setae...'
- TeacherHow can they see if the eyes are all covered up? Or are we seeing the under side?\
Bugscope Teamthis is the surface of the eye; we cannot see past the surface with the electron beam
- Bugscope Teamwhen the spider is alive those are kind of crystalline looking
- TeacherSo is there an actual eyeball in there then?
Bugscope Teamoften they do not see very well; that is why they have so many sensory setae
- Bugscope Teamthey are super sensitive to vibration, no suprise
- Bugscope Teamsurprise sorry my spelling is a disaster
- 7:27 pm
- Bugscope Teamthis is one of the mechanosensory setae
- TeacherHi I'm Pawan (puh-won)
Bugscope TeamHi Pawan!
- Teacherthats okay
- Teachercan you help us focus this?
- Bugscope Teaminsects and spiders etc. have exoskeletons -- they don't have skin like we do with nerve endings in it. having an exoskeleton, like a shell (like a shrimp shell, for example) is like if you were wearing armor -- you would not be able to feel something touching you, or the wind...
- Bugscope Teamnot too much to see beyond this, but you can find another seta
- Teacherwhat exactly are we seeing?
Bugscope Teamyou are seeing a single seta on the head of a spider in front of its eyes
- Bugscope Teamthe setae penetrates the cephalothorax and connects to a nerve beneath it so the spider can feel when something is touching it or blowing on it
- TeacherHi Marissa and Mia are here
Bugscope TeamHi Marissa and Mia!
- TeacherWE would like to see the Armadillidium specimen
- 7:32 pm
- TeacherPLease take us there now
- Bugscope Teamthe rolypoly?
- Bugscope Teamyou can click on it yourself if you want...
- Bugscope Teamthis is one of its legs
- Bugscope Teamvery dirty
- Bugscope Teamthese are actually crustaceans, and they have gills
- TeacherJust testing you
Bugscope Teamwanted to make sure you knew, that's all.
- TeacherDoes it have, like, fingernails, or what?
- Bugscope Teamthe shell of an insect or arthropod like this is made of chitin, which is like our fingernails
- Bugscope Teamand the toe we see in the very middle of the image now is thickened chitin
- TeacherWhat is the stringy hairy stuff for?
Bugscope Teamtons of fungus on this critter
- TeacherJust standard protection? From what exactly?
Bugscope Teamthe thickened chitin on the tip of the leg is what it uses to walk on, so it's like a shoe or a boot perhaps. is that what you meant?
- 7:37 pm
- Bugscope Teamhere we see a few of the facets of the fly's compound eye. they're called 'ommatidia.'
- Bugscope Teamthe fly is kind of beat up
- TeacherHi Scott, Gwen here. What do you mean by the juju on the eye?
Bugscope TeamGwen it is just some dried fluid we don't recognize. Sometimes insects throw up on themselves when they die, or hemolymph oozes out.
- Bugscope Teamsome insects, like butterflies, wasps, and moths, can have thousands of ommatidia -- up to 17,000 per eye
- Bugscope Teammaybe you can tell me what these things are
- Bugscope Teamyou sent them...
- Bugscope Teamthis one has a nasty sharp spine right in the center
- TeacherThat's awesome. Jon here, we collected these burrs, or seeds outside of our campus.
- Bugscope Teamthere's one to the left that I mounted upside down compared to this
- 7:43 pm
- Bugscope Teamthis ant's head is glowing because the electrons are not running off of it very readily
- Bugscope Teamyou know you are driving a $600,000 electron microscope from your classroom
- Teacherare those fine hairs all over it's face?
Bugscope Teamyes they're called microsetae (original, huh?), and they are not sensory. they likely help the ant thermoregulate and also give it a recognizable pattern.
- TeacherHi. Barb, Denise, and Teresa, and Chris, here
- TeacherWe would like you to focus on the fang, please.
- Teacheryes we are aware and amazed
Bugscope TeamI worked with a class yesterday, and I thought it went well; when the guy sent in his comments he indicated that he thought he was looking at slides. Dude you were driving the 'scope!
- TeacherWhat kind of spider is that?
Bugscope Teamit was a skinny reddish spider
- TeacherToo cool
- Bugscope Teamthere is a lot of dried fluid here, so you cannot see the poison pores
- 7:48 pm
- Bugscope Teamspiders inject venom into their prey, the venom dissolves their insides, and the spiders suck it all up like a milkshake
- TeacherPlease show us the poison pores on antoher speciman
- TeacherToo bad, I was hoping to see the posion pores
Bugscope Teamyou can click on the centipede fang to see what those look like, very similar
- Bugscope Teamawesome
- Bugscope TeamI think this may not be for delivery but rather function like a straw
- Bugscope Teamsweet
- TeacherWhat are the little circles?
Bugscope Teamthose are, I believe, chemosensory pits that help the centipede taste its food
Bugscope Teamlike tastebuds
- Bugscope Teamspider fangs look almost exactly like this
- TeacherI wonder if it likes pizza
Bugscope Teamis this making you hungry?
- 7:53 pm
- Bugscope Teamalmost all ants you see are females. when you see males, they have wings. the queen is the only female that may have wings, but she loses them when she starts laying eggs.
- TeacherThat is very interesting
- Bugscope Teamyou can see the mandible here; it opens side to side (there are two of them) like a gate
- Bugscope Teamant mouths often look like they have a whole 'nother insect in them
- Bugscope Teamthey have two sets of palps that are like accessory limbs -- they help them manipulate and taste their food
- TeacherYes it does look like it has another insect in the ant's mouth
Bugscope Teamhorrible table manners
- Bugscope Teamhey you found one of the claws!
- TeacherThat's neat
- Bugscope TeamSEM is me sitting at the 'scope, driving sometimes
- 7:58 pm
- Bugscope Teaminsects have a head, a thorax, an abdomen, and six legs
- TeacherHI - it's Michele Korb again. We are going to log out in a minute. Any final words of wisdom?
- Bugscope TeamI can't think of anything, y'know, profound...
- Bugscope TeamGood job driving!
- Bugscope Teamusually there are two claws, and they can close together to grip things
- Bugscope Teamthey work, often, like those extender tools you use to pluck cans off of top shelves
- Bugscope Teamthere's a tendon inside the tarsus called an unguitractor that makes that happen.
- Bugscope Teamsome (sort of) wisdom for you...
- TeacherTHat is very wise!!
- Bugscope Teamheh
- Bugscope Teamthank you for connecting with us this evening!
- 8:03 pm
- Bugscope Teamit's like a little bouquet of mold spores
- TeacherCOOL MOLD!! HOw sweet! OK -we are going to leave now. Thanks for a great session. See you on Monday!
- Bugscope TeamSee you Monday!
- Bugscope TeamThank You!
- Bugscope TeamThank you, Danielle, as well!
- Bugscope TeamAnd everyone else!
- Bugscope TeamBye!