Discovery Science: Earth Biology – Animals – crustaceans and spiders
Earth Science: Biology – Animals – crustaceans and spiders Crustaceans and spiders, as well as the ancient scorpions, belong to the phylum Arthropoda or “arthropods.” As close relatives to insects, they share many anatomical features. There are about 38,000 species of crustaceans, most of which live in water. Crustaceans live in diverse environments and may … Read more