Connected on 2013-07-10 15:00:00
from Alameda, California, United States
- 2:55 pm
- Bugscope TeamHello!
- Bugscope TeamWelcome to Bugscope!
- TeacherHey!! As usual, I will do some intro to my class - we start at 1 pm - same time as the session. So - see you soon!
- 3:00 pm
- 3:08 pm
- Bugscope TeamHi Jill!
- Bugscope TeamHi Julianne!
- 3:19 pm
- TeacherWe are on it now!
- Bugscope TeamHey Super Cool!
- Bugscope TeamThis is a spider head
- Bugscope Teama small spider facing NE
- Bugscope Teamyou can see its abdomen now, totally shriveled up
- Bugscope Teamthe head and thorax are fused into a cephalothorax, just one clue it's not an insect
- Bugscope Teamthe other clues being that fact that it has 8 legs and 6-8 eyes
- Bugscope Teamhaha Yeah
- TeacherWhat is a cephalothorax?
Bugscope Teamit's a 2-in-1 head and thorax
- Guest6
- GuestHow many legs does an average insect have?
Bugscope Teamall insects have 6
- 3:24 pm
- Bugscope Teamthat the legs are attached to
- Bugscope Teameven caterpillars -- larval insects -- have six legs; the other leglike things are called 'prolegs'
- Bugscope Teaman insect has a head, a thorax, an abdomen, six legs, and two antennae
- GuestWhat's going on with the hair?
- Bugscope Teamso a lobster is, sadly, not a super large insect
- Guestwhere does the spider webbing come from?
Bugscope Teamit usually comes from the end of the abdomen
- GuestWhy does the hair look like wood
- 3:29 pm
- Teacherhi this is jen kristi and dayna, we are interested in the bee!
- Bugscope Teamnot sure why. It does though. Human hair at high magnifications looks weird too
- Teacheris this the bee's tongue?
Bugscope Teamyes it is
- GuestDo bees sleep? Do bugs sleep?
Bugscope Teamthey don't really sleep; they become somnolent
- Guestwhat is somnolent?
Bugscope Teamit's a period of inactivity. They power down, but are able to become active in a moment's notice.
- TeacherIs the eye hairy?
Bugscope Teamyes it is!
- Bugscope Teamthe setae on the eye help with thermoregulation as well as sensing wind direction and wind speed, to some extent
- TeacherAre their eyes comprised of simlar components as human eyes?
Bugscope Teamsome of the components may be analogous, yes; like I think they have different receptors for different ranges of color -- different wavelengths
- 3:34 pm
- TeacherWhat are we seeing here?
Bugscope Teammostly hair. we are on the thorax of a big bee. There are 2 legs coming to meet in the middle, with claws at the end. The head to the north
- Bugscope Teambees can see in UV, but can't see red
- Teacherdo bees have a nose? where is it?
Bugscope Teamtheir antennae are their "nose"
Bugscope Teamthey use this to sense volatile compounds, as well as contact (non-volatile) compounds
- TeacherHi! This is Lauren, Dianne, and Jill
Bugscope TeamHello!
- TeacherWhat are the spots on the eyes?
Bugscope Teamjuju
- Bugscope Teambees do not see all of the same colors we do, and also, they can see in the UV ranges, whereas we cannot
Bugscope Teammost insects can't see very far in to the red wavelengths
- Bugscope Teamthe spots are droplets of oil or something we don't normally find on compound eyes
- TeacherWhat's juju?
Bugscope Teamjuju is stuff that isn
Bugscope Teamisn't native to the insect- like dirt or dust
- Bugscope Teamin flies, the males' eyes are often quite close together, like Mikhail Baryshnikov's eyes.
- Bugscope Teamthe females' eyes, like in this fly, are far apart, like Uma Thurman.
- 3:39 pm
- Bugscope Teamon top of the head, as we see it now, are the antennae
- Bugscope Teamthe antennae have a part like a think pad, like a prickly pear cactus, and they have a branched part -- the aristate portion of the antenna
- TeacherHi - it is Dr. korb - can you give control to danielle?
Bugscope Teamdanielle has control
- Bugscope Teamduh like a 'thin' poad
- Bugscope Teampad
- Bugscope Teamcan't type
- Bugscope Teamthis is one of the spiracles, through which insects breathe
- Bugscope Teamso we're actually looking into it
- Bugscope Teaminsects can open and close their spiracles to control the amount of air that gets in and the amount of air and liquid that might escape
- GuestWhat are those long hairs and short hairs that we see?
- Bugscope Teamnow we see setae -- the longer hairs -- as well as microsetae
- 3:45 pm
- Bugscope Teamthe long hairs are sensory, probably mechanosensory; some are thermosensory and some are chemosensory
- GuestDo they have lungs? How does this thingy work?
Bugscope Teamthey do not have lungs. insects have an open circulatory systeram, these spiracles are actually openings that control the amount of air that comes in and out. the air goes through a series of tubes called tracheae that brings oxygen to the cells
- GuestWhat kind of insect are we looking at right now?
Bugscope Teamwe are on the fly
- GuestAre the spiracles placed in specific places around the body, or are they random?
Bugscope Teamthere is usually a pair on each side of each segment of the abdomen.
- Teachercan you give control back to CSU East bay? thanks!
Bugscope Teamsure@
- Bugscope Teamthe smaller hairs -- the microsetae -- often form patterns and also likely help with thermoregulation
- Teacherhello! this katrina and jenna
- Teacherthis is
- Bugscope TeamHello Katrina and Jenna!
- Bugscope Teamhi!
- Teacheris the ant laying on its back?
Bugscope Teamhaha Yes it is!
- Bugscope Teamit's missing its antennae
- Teacherwhat does "w vitiligo" mean?
- Bugscope Teamyou can see one of its compound eyes, to the left
- Bugscope Teamthe ant has an autoimmune disease that gives it uneven pigmentation
- Teacherwhat's going on in here
Bugscope Teamthe ant mouth is usually like this -- confusing. we see four palps, and we see the crossed mandibles at the top
- 3:50 pm
- Teachercan you please center this so we can see the crossed mandibles?
- Bugscope Teampalps are accessory mouthparts that help the insect both taste and manipulate its food
- Guestdo ants, or other bugs, have teeth or anything like that? or jaws?
Bugscope Teamthey have jaws, and ridges on their jaws that kind of look like teeth, but they don't have teeth
- Bugscope Teamthe mandibles open from the left or right, like a gate
- GuestThey crush food with their mandibles, right?
Bugscope Teamyes they do!
- Bugscope Teamthe mandibles will wear down over time, and the ant may have to take on another job.
- Teacherkorb here again - going to cruise the presets a bit.
- Bugscope Teamsometimes the mandibles are strengthened with zinc or other minerals
- Bugscope Teamit moved...
- Bugscope Teamthere it is
- Teachermold spore?
Bugscope Teamyes it is so cute!
- Teacherlooks like a fuzzy football
- Bugscope Teamhere is a partly deflated football
- GuestWhat are the little hairs coming out of it?
Bugscope Teamlikely they help it adhere to surfaces so the mold can go to work decomposing something
- 3:55 pm
- Bugscope Teamnow we're looking at lily pollen
- Bugscope Teamlarger than mold spores, generally
- Bugscope Teamit's a rose
- Teacherwhat is a haltere and what does it do?
Bugscope Teamit beats opposite the wings and stabilizes the fly as it flies.
- Bugscope Teamyou can see the hypertrophied mechanoreceptors near the base; the tip is shrunken compared to what it would be like if the fly were alive
- Teachersorry to jump around so much. This is our last preset to view before we sign off.
- Bugscope Teamhere you can see that the stinger has two halves that help it cut into your skin
- TeacherWhy does it look like it is in two halves?
- Teacherouch
- Bugscope Teamand it has recurved spines that help cut and also stick better
- Teacherwhy do bees die if they sting you? is this true?
Bugscope Teamif honeybees sting people or other mammals, the stinger will get caught it that thick skin and cannot be pulled out; instead the stinger is pulled out of the bee, and the bee bleeds out
- 4:00 pm
- Bugscope Teamhoneybees can sting other insects repeatedly, no sweat
- Teachervery interesting!!!
- Bugscope Team'caught in that thick skin'
- TeacherOk - so we have to go! Anything else you have to share?
- Bugscope Teamwhen the stinger gets pulled out a little outboard motor is also pulled out with it that pumps venom into your wound
- TeacherWe had a great time as usual! Go Bugscope!
- Bugscope Teamthank you!
- Bugscope TeamThank You!
- TeacherThat is really mean!
- Bugscope TeamSee you next time!
- TeacherI mean the bee - not you.
- Bugscope TeamThank you for the cool specimens.
- Bugscope Teambye!
- TeacherWe love you!
- TeacherAnytime= talk to you later.
- Bugscope TeamCat Power would say Love you more!
- Bugscope TeamBye!
