A Moment of Science
Horns and antlers have some important things in common.
I find it interesting that many animals, like sheep, zebras, fish, and birds, tend to congregate and move around in flocks. What's the science behind flocking?
Cows, goats, and sheep require symbiotic microbes to help digest the plant biomass that they eat, and some of these microbes make methane.
So how do scientists measure the success of an animal's success? Find out on this Moment of Science.
In this instance, nature is said to have “selected” the camouflaged butterfly over other variations that weren’t as well hidden. In “artificial selection,” the same thing happens, only we human beings make the choices.
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