Learn the powerhouse work routines of the top-rated professionals. How to avoid over, or under, training.

Young children are natural problem solvers and always looking for answers, especially when it involves ocean animals. Guess What: Awesome Arms: Octopus provides

Emlen takes us outside the lab and deep into the forests and jungles where he's been studying animal weapons in nature for years, to explain the processes behin

Little Crab asks what an octopus can do with his eight arms and gets a surprising, rhyming, reply.

The appearance of the crossbow on the European battle field in A.D. 1100 as the weapon of choice for shooting down knights threatened the status quo of medieval