All arachnids have eight legs, and unlike insects, they don't have antennae. The bodies of arachnids are divided into two sections, the cephalothorax in front and the abdomen behind. ... Arachnids are part of a larger group called arthropods , which also includes insects, myriapods, and crustaceans.

How many antennae do arachnids have?

Unlike insects, arachnids have eight legs and no antennae or wings, and their body is divided into two main segments: A cephalothorax and abdomen.

What features do all arachnids have?

Arachnids possess the same general characteristics that define all arthropods, but have a few other unique distinctions: No antennae, claws, or wings, but instead have mandibles : structures for biting and chewing prey. Eight appendages. A fused head and thorax, called a cephalothorax.