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.
On Animal Planet's series "Fooled by Nature," When attacked the cobra spits venom up to 8 feet in order to blind the enemy. It's venom is a neurotoxin which can produce pain and blindness.
For Ed Cassano, there is nothing wrong with having 40 deadly snakes. Even though they could potentially end his life, he feels completely safe around them.
Is the megaconda real? The evidence is spotty, but some say this monster-snake exists, reaching lengths in excess of 130 feet and weighing as much as 5 tons.
Meet amazing creatures that thrive in one of the most inhospitable places on earth: Africa's Namib Desert. (From "Survival of the Sand Creatures," Season 1)