THE restriction of increase of size to the immediate post-ecdysal period is a feature of growth peculiar to Arthropods. The rapidity of the increment suggests that it is due merely to inflation of ...

Today, arthropods are a group that includes insects, crustaceans, arachnids such as spiders, and their relatives — and the extinct Arthropleura remains the largest known arthropod ever to live ...

Today, arthropods are a group that includes insects, crustaceans, arachnids such as spiders, and their relatives — and the extinct Arthropleura remains the largest known arthropod ever to live on the ...

An exploration of protoarthropod and arthropod diversity using live and preserved specimens of the major taxa including Tardigrada, Onychophora, Chelicerata, Crustacea, Myriapoda and Hexapoda.

A 450-million-year-old fossil of an ancient relative of spiders has been discovered preserved in 3D by fool's gold. The new ...