A small sample of the more primeval part of the ocean universe, from rudimentary green, slimy plant life to more complex seaweed to tiny molluscs in their shells; all here in a single rock pool.

Addendum: My personal opinion is that Facebook and all other members of the Meta group are disgusting, sociopathic organisations that steal other peoples' intellectual property (including the images in this gallery) despite being explicitly denied permission to do so.