Connected on 2013-07-10 15:00:00 from Alameda, California, United States
- Bugscope Team Hello!
- Bugscope Team Welcome to Bugscope!
- Teacher Hey!! As usual, I will do some intro to my class - we start at 1 pm - same time as the session. So - see you soon!
- Bugscope Team Hi Jill!
- Bugscope Team Hi Julianne!
- Teacher We are on it now!
- Bugscope Team Hey Super Cool!
- Bugscope Team This is a spider head
- Bugscope Team a small spider facing NE
- Bugscope Team you can see its abdomen now, totally shriveled up
- Bugscope Team the head and thorax are fused into a cephalothorax, just one clue it's not an insect
- Bugscope Team the other clues being that fact that it has 8 legs and 6-8 eyes
- Bugscope Team haha Yeah
- Teacher What is a cephalothorax?
Bugscope Team it's a 2-in-1 head and thorax
- Guest 6
- Guest How many legs does an average insect have?
Bugscope Team all insects have 6
- Bugscope Team that the legs are attached to
- Bugscope Team even caterpillars -- larval insects -- have six legs; the other leglike things are called 'prolegs'
- Bugscope Team an insect has a head, a thorax, an abdomen, six legs, and two antennae
- Guest What's going on with the hair?
- Bugscope Team so a lobster is, sadly, not a super large insect
- Guest where does the spider webbing come from?
Bugscope Team it usually comes from the end of the abdomen
- Guest Why does the hair look like wood
- Teacher hi this is jen kristi and dayna, we are interested in the bee!
- Bugscope Team not sure why. It does though. Human hair at high magnifications looks weird too
- Teacher is this the bee's tongue?
Bugscope Team yes it is
- Guest Do bees sleep? Do bugs sleep?
Bugscope Team they don't really sleep; they become somnolent
- Guest what is somnolent?
Bugscope Team it's a period of inactivity. They power down, but are able to become active in a moment's notice.
- Teacher Is the eye hairy?
Bugscope Team yes it is!
- Bugscope Team the setae on the eye help with thermoregulation as well as sensing wind direction and wind speed, to some extent
- Teacher Are their eyes comprised of simlar components as human eyes?
Bugscope Team some of the components may be analogous, yes; like I think they have different receptors for different ranges of color -- different wavelengths
- Teacher What are we seeing here?
Bugscope Team mostly 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 Team bees can see in UV, but can't see red
- Teacher do bees have a nose? where is it?
Bugscope Team their antennae are their "nose"
Bugscope Team they use this to sense volatile compounds, as well as contact (non-volatile) compounds
- Teacher Hi! This is Lauren, Dianne, and Jill
Bugscope Team Hello!
- Teacher What are the spots on the eyes?
Bugscope Team juju
- Bugscope Team bees do not see all of the same colors we do, and also, they can see in the UV ranges, whereas we cannot
Bugscope Team most insects can't see very far in to the red wavelengths
- Bugscope Team the spots are droplets of oil or something we don't normally find on compound eyes
- Teacher What's juju?
Bugscope Team juju is stuff that isn
Bugscope Team isn't native to the insect- like dirt or dust
- Bugscope Team in flies, the males' eyes are often quite close together, like Mikhail Baryshnikov's eyes.
- Bugscope Team the females' eyes, like in this fly, are far apart, like Uma Thurman.
- Bugscope Team on top of the head, as we see it now, are the antennae
- Bugscope Team the 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
- Teacher Hi - it is Dr. korb - can you give control to danielle?
Bugscope Team danielle has control
- Bugscope Team duh like a 'thin' poad
- Bugscope Team pad
- Bugscope Team can't type
- Bugscope Team this is one of the spiracles, through which insects breathe
- Bugscope Team so we're actually looking into it
- Bugscope Team insects 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
- Guest What are those long hairs and short hairs that we see?
- Bugscope Team now we see setae -- the longer hairs -- as well as microsetae
- Bugscope Team the long hairs are sensory, probably mechanosensory; some are thermosensory and some are chemosensory
- Guest Do they have lungs? How does this thingy work?
Bugscope Team they 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
- Guest What kind of insect are we looking at right now?
Bugscope Team we are on the fly
- Guest Are the spiracles placed in specific places around the body, or are they random?
Bugscope Team there is usually a pair on each side of each segment of the abdomen.
- Teacher can you give control back to CSU East bay? thanks!
Bugscope Team sure@
- Bugscope Team the smaller hairs -- the microsetae -- often form patterns and also likely help with thermoregulation
- Teacher hello! this katrina and jenna
- Teacher this is
- Bugscope Team Hello Katrina and Jenna!
- Bugscope Team hi!
- Teacher is the ant laying on its back?
Bugscope Team haha Yes it is!
- Bugscope Team it's missing its antennae
- Teacher what does "w vitiligo" mean?
- Bugscope Team you can see one of its compound eyes, to the left
- Bugscope Team the ant has an autoimmune disease that gives it uneven pigmentation
- Teacher what's going on in here
Bugscope Team the ant mouth is usually like this -- confusing. we see four palps, and we see the crossed mandibles at the top
- Teacher can you please center this so we can see the crossed mandibles?
- Bugscope Team palps are accessory mouthparts that help the insect both taste and manipulate its food
- Guest do ants, or other bugs, have teeth or anything like that? or jaws?
Bugscope Team they have jaws, and ridges on their jaws that kind of look like teeth, but they don't have teeth
- Bugscope Team the mandibles open from the left or right, like a gate
- Guest They crush food with their mandibles, right?
Bugscope Team yes they do!
- Bugscope Team the mandibles will wear down over time, and the ant may have to take on another job.
- Teacher korb here again - going to cruise the presets a bit.
- Bugscope Team sometimes the mandibles are strengthened with zinc or other minerals
- Bugscope Team it moved...
- Bugscope Team there it is
- Teacher mold spore?
Bugscope Team yes it is so cute!
- Teacher looks like a fuzzy football
- Bugscope Team here is a partly deflated football
- Guest What are the little hairs coming out of it?
Bugscope Team likely they help it adhere to surfaces so the mold can go to work decomposing something
- Bugscope Team now we're looking at lily pollen
- Bugscope Team larger than mold spores, generally
- Bugscope Team it's a rose
- Teacher what is a haltere and what does it do?
Bugscope Team it beats opposite the wings and stabilizes the fly as it flies.
- Bugscope Team you can see the hypertrophied mechanoreceptors near the base; the tip is shrunken compared to what it would be like if the fly were alive
- Teacher sorry to jump around so much. This is our last preset to view before we sign off.
- Bugscope Team here you can see that the stinger has two halves that help it cut into your skin
- Teacher Why does it look like it is in two halves?
- Teacher ouch
- Bugscope Team and it has recurved spines that help cut and also stick better
- Teacher why do bees die if they sting you? is this true?
Bugscope Team if 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
- Bugscope Team honeybees can sting other insects repeatedly, no sweat
- Teacher very interesting!!!
- Bugscope Team 'caught in that thick skin'
- Teacher Ok - so we have to go! Anything else you have to share?
- Bugscope Team when the stinger gets pulled out a little outboard motor is also pulled out with it that pumps venom into your wound
- Teacher We had a great time as usual! Go Bugscope!
- Bugscope Team thank you!
- Bugscope Team Thank You!
- Teacher That is really mean!
- Bugscope Team See you next time!
- Teacher I mean the bee - not you.
- Bugscope Team Thank you for the cool specimens.
- Bugscope Team bye!
- Teacher We love you!
- Teacher Anytime= talk to you later.
- Bugscope Team Cat Power would say Love you more!
- Bugscope Team Bye!