Marine researchers in Australia have found what might be the most toxic species of microalgae ever studied.

Find out why the notorious box jellyfish deserves its loathsome reputation. The animal's toxins are among the strongest found in nature.

These slow-moving, eucalyptus-eating marsupials native to Australia are beloved for their sweet demeanors and distinctly non-human adorableness. However, koalas do share one feature in common with ...

Humans are quite good at eradicating unwanted species when they set their mind to it. Sometimes, they do it without even trying. But, every once in a while, an animal proves more wily than anticipated ...