Dolphins amaze me.
httpv://www.youtube.com/watch?v=pQ50PYMXDCQ
Video description from Youtube:
A pod of bottlenose dolphins off the coast of Florida have developed a remarkable hunting strategy in order to catch fish. Another awesome thing about this technique is that only one female in the pod can create this ring.
From the first episode (Challenges of Life) of the new BBC series Life. http://www.bbc.co.uk/programmes/b00lbpcy
Those are some clever animals.