Sponges are simple colonial animals. They have no real organs and their body tissue is made up of fibre-like protein, which is just like a bath sponge.
Spectacular Sponge Gardens!
Marine animals wear hats, and their reasons for doing so are varied — and sometimes weird - ABC News
Two new sponge species with Nyoongar species names
Descriptive Catalogue of the Sponges in the Australian Museum, Sydney - Robert Von Lendenfeld - Google Livros
Rose Sponge - The Australian Museum
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Sponges - The Australian Museum
South Australian Museum - Natural bath sponges have high quality proteinaceous 'spongin' fibres that give them their springy spongy quality. ⠀ ⠀ However, there are only a handful of sponge species that
Frontiers Macrofauna Inhabiting Massive Demosponges From Shallow and Mesophotic Habitats Along the Israeli Mediterranean Coast