Where did snakes lose their limbs? Find out on this Moment of Science.
There are plenty of examples in nature of females being attracted to the biggest males. Learn about the Atlantic Mollies on this Moment of Science.
Wildfires destroy enormous areas of forest every year. However, after forest fires, some plants manage to grow back at accelerated speeds.
Eating snow to obtain water is metabolically expensive–it would take too much energy to melt down enough snow. Consequently, polar bears have evolved so that they don’t need to drink free water.