Do spiders sleep?

Question

And insects in general.

Answer 1

All animals go through a quiescent period (sleep) but with insects and arachnoids, their rest periods are controlled by both light and temperature. Some spiders spin huge webs in the evening and are quiescent during the day, but butterflies are controlled more by condensation on their wings, but moths use the condensation to improve their flight. Spiders use their webs for trapping other insects, and then use their legs to detect tremors in the silk to alert them of new prey. I am sure you have seen spiders sitting motionless on webs...they are quiescent...but if you take a twig and gently touch one of the silks, they become alert.

Answer 2

Spiders Sleep

Answer 3

It really depends on how you define "sleep". All animals have some sort of 'circadian' rhythm - a daily activity/inactivity pattern. Some are active during the day - diurnal - others are active at night time - nocturnal/crepuscular. The periods of inactivity are characterised by withdrawal (to a shelter perhaps) and a drop in metabolic rate. This applies to spiders as well, although no studies have been done to measure the period of time spent in such a state or at what times different species do it. It seems that spiders with good eyesight that rely on vision to capture prey may tend to be more active in daylight hours, whereas others that rely on snares/webs could be active at other times, but this is not necessarily the case for all species. In cold climates, spiders "overwinter", which means that they have a kind of hibernation period. Overwintering involves a drop in metabolic rate, where the spiders bring their legs into their body and remain huddled in a shelter during the coldest months of the year. This ability to shut down for a long period of time indicates that they might be able to do it for shorter periods in their everyday cycle, which could be seen as a form of sleep or rest.

Answer 4

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RE:
Do spiders sleep?
And insects in general.

Answer 5

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Of course spiders sleep! How do you suppose they get rest? He's probably dead, though...

Answer 6

Yes all insects sleep, or at least have a quiet period, it typically isn't periodical like us, but it does happen for short periods of time every so often.

Answer 7

Only mammals and lizards actually sleep. Everything else rests in a state of inactivity or a state of semi-hibernation.

Answer 8

No, there watching you 24/7, watching and waiting!!!

Answer 9

No spiders don't sleep

Answer 10

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