In 1997 American scientists successfully produced and attached a human ear to the back of a mouse. Doctors believe similar mold transplants will help humans regrow their own organs.
Some fish defy the laws of nature and imagination. A catfish the size of three grown men turns a relaxing day of fishing into an adrenaline-pumped fight.
Michael has a compulsion for eating meat - and a lot of it. He eats so much that his wife is terrified that if help can't be found, he'll see the same fate as her late father.
A solitary lion encounters a pack of hungry males feasting on an animal carcass at night. What happens next is a show of force! Check out this I, Predator deleted scene.
In this clip from "Survival Guide: Serengeti" on Animal Planet, we get an overview of the most powerful of the meat eaters. The Serengeti lion is on top of the food chain and has little to fear.
India has their own "great cats": tigers, lions and leopards. Watch as our crew tapes the villagers live among these amazing felines! (From "Great Cats of India," Season 1)