Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Sponges form symbioses with a wide array of mesofauna including polychaetes, crustaceans, brittle stars, and bivalves. These organisms use the sponge for food and shelter, but their effect on the sponge is largely unknown. The...
Globally, species diversity is regulated by speciation and extinction, and regionally it is regulated by competition, niche, colonization, emigration, and extinction, and more locally, by environmental tolerance and species interactions...
Biologists have long been interested in the diversity of organisms on earth. With their joint presentation to the Linnean Society of London in 1858, Darwin and Wallace proposed natural selection as a clear mechanism to explain the...
Batoid fishes (skates, stingrays and allies) comprise the majority of species diversity and morphological disparity among chondrichthyans, one of the two primary divisions of extant jawed vertebrates. The largely recent and growing...
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
