31 New Species Found in Two Weeks Off Brazil's Coast

An expedition off Fortaleza, Brazil logged 31 new species in just two weeks

Cameras filmed a giant seven-arm octopus eating a red jellyfish 800 metres down

The haul: 9 jellyfish, 7 siphonophores, 7 comb jellies, 4 larvaceans, 2 rhizarians, 1 amphipod, 1 worm

A Stanford microscope captured a living single-celled organism's insides in 3D at sea, a first

Animals were filmed, not trawled, so fragile bodies survived to be studied alive