and know to throw it back out? it really amazes me something so small can tell the difference.
2006-09-28 07:07:26 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
That amazes me as well.One time I threw a wasp in a spider's web.The Spider came down..Saw what it was and ran!!Spider's have some intelligence.
2006-09-28 07:16:09 · answer #1 · answered by John G 5 · 1⤊ 0⤋
If it's edible it must be alive. If it's alive it will struggle to get away from the web, which will in turn make the web vibrate, more than just the once when it lands. It is the continuous vibration of the web that brings the spider out and tells him/her there's soemthing good to eat on the web.
2006-09-28 14:12:49 · answer #2 · answered by Quilps 2 · 1⤊ 0⤋
Most things are edible to a spider. It has a good sense of smell. Most insects that are not edible have bright colours on them or they mimic the colours of a wasp eg yellow and black. So a spider would know this by sight and smell
2006-09-28 16:42:48 · answer #3 · answered by cornishmaid 4 · 0⤊ 0⤋
The spider checks first by tugging its own web in the direction of the object. If it is something alive it will try to free itself. if it is a leaf or something the spider can detect this, usually by sight using its 8 eyes.
2006-09-28 14:52:40 · answer #4 · answered by Old Man of Coniston!. 5 · 0⤊ 0⤋
well, I am not sure, but it bases everything on movement and the vibrations in the web caused by a live insect. If you were to throw a dead one in there it would be interesting if it would know what to do with it.That's really all I know about spiders :)
2006-09-28 14:15:48 · answer #5 · answered by distalbicept 3 · 1⤊ 0⤋
It cant until it goes and investigates. Actually in insect terms a spider is something of giant. There are insects so small you cant see them with the naked eye yet they are sully functioning insects
2006-09-28 14:12:27 · answer #6 · answered by Maid Angela 7 · 1⤊ 0⤋
housekeeping duties - twigs, leaves and other unedibles that fall on the web are cleaned and removed off the web. oh yeah, like the other answerer brought out it has to be alive. so even if you were to throw a dead insect on the web it will treat it like trash and void it off. it wants fresh food.
2006-09-28 14:15:05 · answer #7 · answered by Anonymous · 2⤊ 0⤋
actually spiders may have lots of eyes but they are blind, how would you know if someone stuck a lump of wood in with your spag bol, just cos they are insects dont mean they are dumb, if its not looking, smellin and feeling right then its tossed right outta the web!
2006-09-28 14:16:09 · answer #8 · answered by Anonymous · 1⤊ 0⤋
spiders have eight eyes (i think!) so i guess lots of little eyes can improve their vision
2006-09-28 14:11:17 · answer #9 · answered by Button.Monster 3 · 1⤊ 0⤋
it all depends on the vibrations..... it's prey will struggle and send out that signal ..... apiece of leaf or speck of dust will not
2006-09-28 14:43:26 · answer #10 · answered by ? 6 · 0⤊ 0⤋