Evident LogoOlympus Logo

Sponge Skeleton

Sponge Skeleton

Sponges are colonial animals that belong to the phylum Porifera. The primitive invertebrates were some of the earliest multicellular organisms to inhabit the oceans of the earth, fossils indicating that they have been proliferating for at least 600 million years.

对不起,此内容在您的国家不适用。

Sorry, this page is not available in your country