Which is a good example of adaptive evolution? The red fox that inhabits farmlands and forests has a red coat, but its relative,
the kit fox, lives in a desert has a sandy–colored coat. Two birds of the same species separate during their migratory flight. After several years, their descendants are quite different from each other. Two species of fish try to swim against the current near a waterfall. One survives, but the other doesn't.
I think it's the first one: the red fox that inhabits farmlands and forests has a red coat, but it's relative, the kit fox, lives in a desert has a sandy-colored coat
Glaciers act as reservoirs of water that persist through summer. Continual melt from glaciers contributes water to the ecosystem throughout dry months, creating perennial stream habitat and a water source for plants and animals. The cold runoff from glaciers also affects downstream water temperatures.
