Natural Selection

Natural Selection

Why do some animals blend into their surroundings while others stand out? Why do certain traits, like a cheetah's speed or a polar bear’s thick fur, help animals survive better in their environments? The answer is natural selection, the process where organisms with traits best ...

Natural selection is a process by which organisms with traits that help them survive are more likely to pass those traits on to their offspring.

However, not all traits can be passed down. Only inherited traits like eye color or beak shape can be passed to the next generation. Over time, traits that improve survival become more common in ...