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Spiders (order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms.
Is a spider an insect?
Spiders are Arachnids. ... Scorpions, mites, and ticks are also part of the arachnid family. Arachnids are creatures with two body segments, eight legs, no wings or antennae, and are not able to chew. Many people think that spiders are insects but they are mistaken since insects have six legs and three main body parts.
Where do spider lives?
Spiders live in almost every habitat on earth. The only places where there are no spiders are the polar regions, the highest mountains, and the oceans. A few spider species have invaded the ocean's edge, living in the rock and coral crevices of the intertidal zone.
What do spiders do?
Spiders hunt and capture prey. The majority feed on other insects and other invertebrates, but some of the largest spiders may prey on vertebrates such as birds. The true spiders of the order Araneae comprise the largest group of carnivorous animals on Earth.
What does a spider do with its web?
Spiders spin webs to protect their eggs or as a hunting tool, a small silk net that they throw over their prey. They can also use webs for transport, climbing to a high point and then release one or more sail-like strands of silk that get caught by the breeze and carries them away.
What part of the spider makes the Web?
Spider silk is made of connected protein chains that help make it strong, along with unconnected areas that give it flexibility. It is produced in internal glands, moving from a soluble form to a hardened form and then spun into fiber by the spinnerets on the spider's abdomen.
Is a spider web poisonous?
Male Sydney funnel-webs are exclusively responsible for human deaths from this spider's bite. Their venom is five times as toxic as the female's because it contains a special chemical called Robustoxin.
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