The natural sponges we use in our baths are actually animal skeletons. Bath sponges consist of a highly porous network of fibres made from a collagen protein called spongin. The skeletons are obtained by cutting the growing sponges and soaking the cut portions in water until the flesh rots away.
Magical mysteries of marine sponges - ScienceDirect
Marine animals without backbones – Te Ara Encyclopedia of New Zealand
Beyond the Bathtub Caradonna Adventures
Sponges and jellies – Te Ara Encyclopedia of New Zealand
Ocean Bizarre - Sea sponges - Cape RADD
New species of 'sneezing' sea sponge discovered in Tauranga
This two-sided scrubber is perfect to use in your kitchen and bathroom. * Two-sided scrubber. * Made of natural coconut fiber, with cellulose sponge
All Natural Whale Sponges
Marine biologist excited by discovery of new sponges
Marine animals without backbones – Te Ara Encyclopedia of New Zealand
Sponges
Marine poeciloscleridan sponges of the San Juan Archipelago
FC-BIOS - 𝗦𝗰𝗶-𝗙𝗮𝗰𝘁#𝟰𝟰: 𝗕𝗶𝗸𝗶𝗻𝗶 𝗕𝗼𝘁𝘁𝗼𝗺
Beyond the Bathtub Caradonna Adventures