Certain parts of black cohosh are poisonous, such as the white or red berries. But the rhizome or underground part of the plant may contain substances that act like medicine. These phytonutrients ...

Both black and white rhinoceroses are actually gray. They are different not in color but in lip shape. The black rhino has a pointed upper lip, while its white relative has a squared lip.

In the natural world, the absence of bright colours is anything but dull. Black or white, or combinations of both, adorn some of nature's most charismatic creatures. The giant panda, native to the ...