Biography about spiders pictures

Spiders are classified in the order Araneae, one of several orders within the larger class of arachnids, a group which also contains scorpions, mites, ticks and opiliones harvestmen. There are more than 40, described species of spider. They are found all over the world, from the tropics to the Arctic. Spiders are even found living underwater in silken domes they supply with air and on the tops of mountains.

Spiders occur in a large range of sizes from 6 millimetres to 10 — 12 inches. All spiders have eight legs, although a few ant-mimicking species use their front legs to imitate antennae, which spiders lack. They are invertebrates which means they do not have a backbone. They are predatory animals that have no wings and no chewing mouth parts.

Classification of spider from kingdom to species level

Instead, like other arachnids, they have a tiny proboscis which they use to suck up the liquid parts of their prey. However, spiders are able to eat their own silk. Spiders are not insects insects have three body parts and six legs. Spiders have two body parts, a hard front part, the head and thorax, called the cephalothorax or prosoma and a soft hind part, the abdomen, called the opisthosoma.