Recent molecular phylogenetic analysis has shown that the marine animals known as peanut worms are not a separate phylum, but are definitely part of the family of annelids, also known as segmented ...

The Annelida collection, including Echiura, Sipuncula and free-living nematode worms, contains a wealth of important and historic material. We care for the most comprehensive collection of ...

General animal biology: Frog as a representative animal -- Materials of the animal body -- Body covering, skeleton, and body muscles -- Digestive systems and metabolism -- Circulatory systems -- ...

This film discusses the evolutionary significance of segmented worms, particularly earthworms, within the phylum Annelida. It explains the structure and function of their segmented bodies, including ...