More than 40% of extant large freshwater animals (megafauna), including carp, salmonids, crocodilians, turtles, beavers, and hippopotamuses, have been deliberately introduced outside their natural ...

Tourists were stunned when a pair of orcas tried to hunt a gentoo penguin alongside their ship. Here’s what happened next.

Our quest for monster fish spans the globe: Australia's Giant Trevally, Thailand's remote waters, Fiji's sea-mounts, and the North Atlantic's giant Bluefin Tuna.

Human beings are the greatest threat to the survival of endangered species, as we are the ones destroying their natural ...

Roughly 425 million years ago, in the warm seas over what is now southern China, there lived a meter-long bony fish with jaws ...