The pentadactyl limb

The right hand flipper of a grey seal. Yes, they have five fingers, just like you and me. We share a very, very deep ancestry!

In his great work On the Origin of Species Charles Darwin wrote:

'What could be more curious than that the hand of man formed for grasping, that of a mole, for digging, the leg of a horse, the paddle of a porpoise and the wing of a bat, should all be constructed on the same pattern and should include similar bones and in the same relative positions?'