For this reason, farmers will tie the cauliflower's leaves around the developing head to protect it from the Sun and stop it from becoming green ... The shape of the boundary between the black and ...

Both black and white rhinoceroses are actually ... Under the hot African sun, white rhinos take cover by lying in the shade. Rhinos are also wallowers. They find a suitable water hole and roll ...

When they reach the end of their long evolutions, smaller stars—those up to eight times as massive as our own sun—typically ... years—a white dwarf cools until it becomes a black dwarf ...