Struggling to wiggle individual toes? It's not you, it's your anatomy! Human feet evolved for balance and support, not fine motor skills like fingers. Shared tendons and brain wiring mean your toes ...

One of my favorite activities is going to the zoo where I live in Knoxville when it first opens and the animals are most active. On one recent weekend, I headed to the chimpanzees first. Their ...

Add Yahoo as a preferred source to see more of our stories on Google. A baby chimp can grab a stick equally well with its fingers and its toes. Anup Shah/Stone via Getty Images One of my favorite ...