Weird
electric spider.
Spiders are predatory
invertebrate animals that have two body segments, eight
legs, no chewing mouth parts and no wings. They are classified
in the order Araneae, one of several orders within the
larger class of arachnids, a group which also contains
scorpions, whip scorpions, mites, ticks, and opiliones
(harvestmen). The study of spiders is known as arachnology.
All spiders produce silk, a thin, strong protein strand
extruded by the spider from spinnerets most commonly found
on the end of the abdomen. Many species use it to trap
insects in webs, although there are also many species
that hunt freely. Silk can be used to aid in climbing,
form smooth walls for burrows, build egg sacs, wrap prey,
and temporarily hold sperm, among other applications... |
 |
