"evolutionary trade-off"

Why Do Humans Get Dizzy? An Evolutionary Biologist Explains

Every human will, at least once, experience a “head spin.” Not many of us, however, will know the delicate and complex machinery that causes...

Why Can’t We See Ultraviolet Light? An Evolutionary Biologist Explains

Humans can only see less than 1% of the electromagnetic spectrum. Here’s why evolution may have intentionally hidden ultraviolet light from...

A Biologist Explains Why Some Humans Get Freckles And Others Never Do

Why do some people get freckles and others don't? A biologist breaks down the genetics, sun exposure and evolutionary trade-offs behind them...