Watch orcas team up to hunt great white sharks in rare video

The killer whales ripped the liver out of a shark and passed it around—only the second time orcas have been seen engaging in ...
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One of the biggest fish ever, this deadly prehistoric killer was the size of a small car, had lethal jaws that resembled a guillotine and the biting power of a T rex

Dunkleosteus belonged to a group of ancient, armoured fish known as the placoderms. These fish lived during the Silurian and the Devonian periods - between 440 and 359 million years ago - and they ...