They don't. Wear shoes, you will run faster!
Some athletes train and learn how to run barefoot out of poverty. They can run fast because of the ability they have learned in the absence of shoes. It certainly is a more natural way for the human body to function. Human being survived for thousands of years without shoes. Shoes are a man made improvement. They generally improve traction and absorb the pounding that comes from running.
swim easily through the water.
swim easily through the water.
Most people (that can swim) can swim 400 yards. The speed of how they do that although varies.
People have to be taught to swim. Animals for the most part have the ability to swim instinctively. I believe people have lost some of their instincts as they gained intelligence.
most people can't swim
They swim a lot. animals that swim very often have webbed feet to allow them to swim better.
The webbed feet help them swim faster.
They have big, webbed feet to swim easier and faster.
crocodiles swim because of their webbed feet
Because, believe it or not, there was a time when people would run around without pants on. But the signs actually came up around beaches where swimmers would walk in with just swim trunks on. And interestingly enough, there is no real health reasons for the bare feet issue. Rather, there is a safety issue with bare feet, such as broken glass. If stepped on, feet could get injured. Also if people are really fat there is kind of a disgusting feature to eating dinner when a fat man/woman is eating right next to you without a shirt on.
Webbed feet .
They have webbed feet to help them swim.