Coconut octopuses are among the most intelligent invertebrates around: They use tools, carry their shelters around for when they need them, and, fittingly, adopt an underwater walking motion that's very similar to humans.

Today, bloodstain pattern analysis is routinely used in murder investigations - analysts draw on chemistry, mathematics and physics to determine the area of origin where an injury occurred.

Everything about the Goliath birdeater is big and terrifying: from an 11-inch leg span to a deadly venom that makes the organs of its victims to shut down and self-digest from the inside. Now see it in action.

On December 7, 1941, an NBC radio affiliate in Honolulu made an urgent phone call to New York. In it, he begins to describe what the world would later know as the attack on Pearl Harbor.

From spitting on the Christian cross to strange sexual acts, the Knights Templar's secret rituals were controversial. But were they using these ceremonies to praise a different religion entirely?

As a nectar feeder, the lesser long-nosed bat follows the trail of cactus blooms between Mexico and the U.S. One of the plants it also plays a major role in pollinating is agave, which gives us tequila.

A Komodo dragon's strongest sensory organ is its deeply forked tongue. It acts as a meal detector that samples the air for dead or dying animals.

The tragic true story of an innocent man suspected of murder is a classic motif of the Hollywood thriller and is used as a subplot in Scream.

Mars is calling. Will we stick with robots or ship off the humans?

Thanks to a local anesthetic in their spit, vampire bats are able to drink blood from their prey without being detected. That way, they can feed undisturbed for up to a half hour at a time.