Knowra Spider predation Spider predation Spider predation is the capture, subdual, and consumption of animal prey by spiders. Strategies range from passive web trapping to active pursuit, ambush, and specialized luring.
Spider silk : A protein fiber spun by spiders for webs, draglines, egg sacs, and prey restraint. Silk can trap prey, anchor attacks, and bind captured animals.
Active hunting in spiders : A spider foraging strategy in which the spider searches for, pursues, or stalks prey rather than relying on a capture web. Many spiders locate and attack prey without building prey-catching webs.
Chelicerae : A pair of arthropod appendages near the mouth, modified in spiders into fangs and associated structures. Spider chelicerae deliver bites that help subdue prey.
Predatory insect : An insect that captures and consumes other animals, including insects or other arthropods. Predatory insects often seize prey with limbs or mouthparts rather than silk and fangs.
Spider venom : A biologically active secretion injected through a spider’s fangs, often affecting prey nervous systems or tissues. Venom helps immobilize prey and begin its digestion.
Ambush predation : A hunting strategy in which a predator waits concealed or motionless before attacking nearby prey. Crab spiders and other spiders seize prey that approaches their hiding place.
Arthropod exoskeleton : A rigid external covering made largely of chitin and proteins that supports and protects arthropods. The exoskeletons of many insects challenge spiders’ ability to access soft tissues.
Venus flytrap : A carnivorous plant that snaps shut on small animals contacting trigger hairs on its leaves. Its plant-based trap captures prey without pursuit, venom, or spider silk.
Orb-weaver spider : A spider that builds a flat, often circular capture web of radiating and spiral silk threads. Its web intercepts flying insects before the spider attacks.
Bolas spider : A spider that captures moths with a sticky silk droplet swung on a line, resembling a bolas weapon. It replaces a capture web with a mobile, chemically targeted lure.
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