Sleep is an essential physiological state for the proper functioning of the organism as a whole, and a series of brain functions occur exactly throughout the sleep period. For example, it is during this period that the toxins that accumulate throughout the waking period are rem...
Less familiar is the widespread trade in bushmeat, which is essentially everything that can be hunted—from mice to chimpanzees and gorillas—and is especially prevalent in West and Central Africa. Yet other species are harvested for body parts, such as tiger bones and rhino horns, which are ...