2006-09-04 12:55:50 · 13 answers · asked by PaulParkins 1 in Education & Reference ➔ Trivia
First, some spiders have oil on their bodies. The oil is slippery, so the web won't stick to it.
Second, since spiders build their own webs, they know which strands of silk are sticky and which ones are not. They stay away from the sticky strands.
Why don't spiders get stuck to their webs like the insects that they catch?
If you look at an orb-weaving spider in its web, you'll notice that the body is held slightly clear of the web, especially when the spider is moving about. The spider has only minimal (but vital) body contact with its web via the claws and bristles at the tip of each leg. Compared to its prey, which crashes or blunders into the web, the spider has only a tiny portion of its surface area in contact with a very small amount of silk at any time. This is obviously an important factor when moving on a sticky web - the less contact the better.
Another important factor is that not all silk lines in a sticky web are sticky. For example, the central part of an orb web (where the spider sits) is made of dry silk, as are the spokes supporting the sticky spiral line, which the spider can use when moving around its web. It's only when the spider makes a quick, direct charge across the sticky spiral to capture prey that it may cause some disruption to the web - but it never gets stuck.
Spiders also spend a lot of time grooming their legs. The spider draws the ends of its legs through its jaws to clean them of debris, which may include silk fragments. This is a very important maintenance activity that contributes to efficient function of the claws and bristles. As well as cleaning them, some secretions from the mouthparts may help make the leg tips less susceptible to sticking.
2006-09-04 12:59:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Spiders do not usually adhere to their own webs. However, they are not immune to their own glue. Some of the strands of the web are sticky, and others are not. For example, if a spider has chosen to wait along the outer edges of its web, it may spin a non-sticky prey or signal line to the web hub to monitor web movement. Spiders have to be careful to only climb on the non-sticky strands of their webs.
A spider positioned in the middle of the web makes for a highly visible prey for birds and other predators. Many day-hunting orb-web spinners reduce this risk by hiding at the edge of the web with one foot on a signal line from the hub, or by appearing to be inedible or unappetizing.
2006-09-04 20:05:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Spiders aren't insects.
2006-09-06 12:18:02 · answer #3 · answered by gifted 4 · 0⤊ 0⤋
Because of the low friction between their feet and the web
2006-09-05 06:20:59 · answer #4 · answered by jayveelim1323 2 · 0⤊ 0⤋
Anti-stick leg coverings.
2006-09-08 19:49:47 · answer #5 · answered by soxrcat 6 · 0⤊ 0⤋
b/c they'r spiders
2006-09-04 20:08:39 · answer #6 · answered by Al3x_Dogg 2 · 0⤊ 0⤋
they secrete a special fluid from their mouths and spread it all over their bodies
2006-09-04 20:03:10 · answer #7 · answered by ChevyGuy 3 · 0⤊ 0⤋
i think that they have special things at the end of thier legs
2006-09-04 19:58:04 · answer #8 · answered by peprica 1 · 0⤊ 0⤋
why dint fish drown in water, seriously Ur an idiot
2006-09-04 21:57:37 · answer #9 · answered by FLeX_BoZaCK 4 · 0⤊ 0⤋
i guess they are tricky insects those turds lol
2006-09-04 19:57:27 · answer #10 · answered by nayda_lopez 1 · 0⤊ 0⤋