Well, it’s not a jellyfish, for starters...
Aside from mosquitoes, which creatures feed on blood?
Test your knowledge in our fun quiz based on BBC One’s Big Blue Live.
Discover fantastic facts about the smaller of the two UK breeding seals.
Animals can produce incredibly strong substances - so who makes the toughest?
BBC Wildlife contributor Stuart Blackman answers your wild question.
BBC Wildlife contributor Karen Emslie answers your wild question.
In the encounter of a lifetime, photographer Kurt Amsler meets a sperm whale only seconds after its birth.
The basics of feeding and breaching behaviour explained, with Rob Lott from Whale and Dolphin Conservation.
New research into orcas’ hunting behaviour provides a clue to the evolution of menopause.