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from group to group. Below the eyes are jaws called chelicerae that have fangs at the tip. Take a look at Shelob in the movie and you’ll get a fairly accurate view of the “face” of a typical spider.
All spiders are predators that feed mainly on insects. Most, but not all, subdue their prey with venom of some sort. The bites of venomous spiders are usually harmless to humans, although black widow and brown recluse bites can be dangerous.
All spiders also produce silk from glands attached to six nozzle-like spinnerets at the tip of the abdomen. Spider silks are proteins released from the spinnerets as liquids that harden as they are drawn from the body. A spider can change the consistency of the strand by adjusting the mixture t>f silks supplied by each spinneret. In this way silks that vary in stickiness and strength can be manufactured for different uses.
Spiders are notable for their elaborate web-building, but not all spiders build webs. Hunting species like wolf spiders, jumping spiders, crab spiders, and tarantulas produce silk but do not make webs.
Spiders use silk to line nests, form draglines and enclose eggs and young in cocoons. Young spiderlings of many species also use silken strands to parachute through the air. And of course, many build webs.
This time of year some of the most conspicuous spiders are females of the orb-weaving
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