The word 'hack' was once simply a verb meaning to cut roughly -- it's now a noun and verb with several meanings, from a bad writer to computer criminal. Learn how it transformed in this episode of BrainStuff, based on this article: https://people.howstuffworks.com/word-hack.htm See...

Sharks are such successful hunters in part because their senses are so well-adapted to finding prey in the water. Learn about sharks' senses of smell, hearing, sight, taste, and electroreception in this episode of BrainStuff, based on these articles:...