Spiders - Skilled weavers
Spiders are arthropods. An arthropod is an animal with a hard outer shell (exoskeleton or external skeleton), a segmented body (body divided into segments), and limbs with joints. Arthropods constitute more than 90% of the animal kingdom and include insects, spiders, centipedes, shrimp, and crayfish. Spiders live almost everywhere on earth, they live in forests, plains, mountains, deserts and underwater. Some spiders live on animals! There are about 36000 kinds of spiders and it is believed that there may be as many as 170,000 kinds of them. Spiders have two main body parts (cephalothorax and abdomen) and have eight legs. Most spiders have eight eyes, but some have as many as 24 eyes!! and others do not have any eyes. Most spiders eat insects and some eat fish and frogs, birds and lizards, large spiders may eat smaller spiders. Spiders bite their prey with their sharp fangs and the poison from the fangs slows or kills the prey. Young spiders are called spiderlings.