Massachusetts has its share of invasive water species. Here's what they are, why you should look out for them, and what to do ...

Under-sea mountains are key locations for predators -- with 41 times more sharks than the open ocean, new research shows.

Unique creatures, odd animals and new species are discovered across the planet. Some are found lurking in remote corners of the world, while others have been hiding right under our noses. Learn more ...