Orcas, or killer whales more commonly known, are the top predators in the oceans. Forget the great white. It doesn’t stand a chance against full grown orca.
Orcas hunt in packs and with wits, liken to wolf packs on land. This video captures the hunting process (compressed no less) in which a grey whale calf was hunted and eventually killed. Nice video unless u are a lover of grey whales.

This another video shows a pod of whales teaching their young ones how to co-operate and hunt a seal on floating ice. Happy ending this time.