'Single cells, single cells, plankton all the way'... Christmas card made from tiny sea creatures bit.ly/s4Hv7r

Shark that smiles for the cameras: Meet the fearsome creature that eats polar bears and can live until 200 bit.ly/uGo3cQ

If you watch jaws backwards..... bit.ly/uh8fEg

A bottle of Bubble and Glow Sticks... bit.ly/uh8fEg

Picture of penguins is a prize-winner bit.ly/tJh8rq

One Year of the Moon in 2.5 Minutes bit.ly/sQJsPj

Ancient killer had excellent vision bit.ly/v3zXu7

Oceans' deepest depth re-measured bbc.in/vEfLLk

Mark Your Calanders for December 10 bit.ly/vQiGRU

A Better Way to See Orcas bit.ly/sCR5e1