klausi
Contributor
I am in the lucky position that I live close to an excellent muck diving site, on Negros Island, in the Philippines. During night dives, the crustacean biodiversity is amazing. The video below is from a night dive this week, and shows how even a small area can be home to multiple species of invertebrates. In this case the small area is ... the back of a single decorator crab. On top of the crab grows a sponge, and the sponge is home to brittle stars, several species of crabs, and annelid worms, which are not friendly with the crabs. 100 cm2 are enough for a respectable little fauna and inter-species behavior no less dramatic than lions versus zebras in Africa.
