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.

Think hot. Burning hot, flames of hell hot, and mix that with sand. Welcome to Hell and the sand demons of Dante's Inferno, a sand sculpture opera based on the Italian classic masterpiece.

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.

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

These glowing shapes and lights could be easily mistaken for the stuff of legends, stories, and fairy tales, but their origins are easily explainable.

Arachnophobia: the irrational fear of spiders. These hairy 8-legged, multi-eyeballed spiders may inspire fear, but get up close and they look almost cuddly.

From past (venomous dinosaurs) to present (venomous jellyfish) to future (venom treatments), the evolution, dangers and benefits of venom continue to surprise.

Nature is amazing with the emotions she can invoke, from excitement to relaxation. So kick back and relax with these 26 soothing water on the rocks photos.

From insects and brain size to genetically-altered mice and Alzheimer's to sea lions and toxic brain damage, these animals help educate about the brain.

Using 25 of a cat whisperer's extraordinary images, here are 10 large cats we might not normally get close enough to say, here kitty kitty, smile for the camera.

Living organisms continue to amaze in the form of recent bizarre discoveries surrounding lungless worms, lonely bacteria and coconut-crazy octopuses.

Now is the time to start planning for spring and summer vacations. These eco-travel links will help you travel a little lighter on the earth this year.