Killer Whales On the Hunt
CNN.com has this remarkable footage of a pod of orcas teaching their young how to hunt seals in the Antarctic. When they surround an understandably anxious seal, it hops onto an ice floe for protection. Working together, the whales swim under the floe, creating a wave of surge that washes the seal off the ice....
...at which point, things really get interesting.
This is amazing to watch. (Click on the hyperlink, then look at the "Best of TV" section in the bottom right-hand corner.)
Free Willy aside, orcas are pretty fierce animals.