The fish that live and lurk in deep ocean waters almost defy explanation. In fact, marine biologists only recently discovered ...

So, to celebrate the huge (and often scary) marine animals on Earth, here is a list of the biggest fish in the world, ranked by size.

A deep-sea snail, many of Europe's fungi and half the freshwater fish in Japan are just some obscure additions to a list of threatened species. The Red List, a conservation status catalogue of ...