These are 31 fish habitats found around that world. Some are works of wonder. Some others are more like WTF were they thinking when they designed that aquarium?

Animal hybrids can occur naturally or through the machinations of Mankind - either way, the resulting hybrids can be surprisingly vigorous.

Researchers have recently discovered some interesting mating behaviors by fruit flies, fruit bats, cane toads, beetles and a group of birds called great tits.

In addition to habitat loss, chlamydia and other threats, Australian koalas are now rapidly suffering from KIDS (Koala AIDS) that is similar to human AIDS.

The world is full of bizarrely shaped boulders and other natural rock formations that we see as familiar objects. Here are 23 bizarre animal-shaped rock formations.

The dreaded, invasive Asian carp could be entering the Great Lakes, posing a serious threat to not only the ecosystem but fishermen on boats.

Sharks are the oceans' most efficient predators and have evolved to fit a wide range of bizarre ecological niches. Here are ten of the strangest.

Just as Peyton Manning and Drew Brees are known for great downfield vision, sea urchins, hammerhead sharks and bees possess quite eye-opening visual skills.

It would be easy to see Claire Morgan's installation art as macabre. But at its heart, it's more about a healthy fascination with science and nature.

Sphynx cats make up for their lack of hair with an abundantly affectionate personality. If cat hair's not "fur" you, then a Sphynx cat just might be!

These unforgettable viral videos show animals at their cutest and at their most human. These are the adorable memes that just keep going and going.

Unseasonably cold weather and globally warm scenarios pose grave animal dangers to tropical fish, sea turtles, colobine monkeys, gorillas and other marine animals.

These spiders' bold faux faces and smile-like markings aren't there to make you laugh, instead they serve to scare and confuse potential predators.

Our bodies contain more bacteria cells than human cells. They're in our mouths and guts, on our skin, and they can both help us and hurt us.

Seemingly mild creatures like cleaner fish, damselfish and fruit flies have recently shown that they have surprising wild sides when push comes to shove.