Gut Infection. Gastroeteritis or the stomach flu can be caused by a virus, bacteria or parasites and causes inflammation of the lining of the digestive tract. Besides white poop, this infection can also cause chills, fever, vomiting, achiness, diarrhea or abdominal pain.
Last Updated: Human evolution, the process by which human beings developed on Earth from now-extinct primates. Viewed zoologically, we humans are Homo sapiens, a culture-bearing, upright-walking species that lives on the ground and very likely first evolved in Africa about 315,000 years ago.
With The Descent of Man, and Selection in Relation to Sex published in 1871, Darwin set out evidence from numerous sources that humans are animals, showing continuity of physical and mental attributes, and presented sexual selection to explain impractical animal features such as the peacock's plumage as well as human evolution of culture, differences between sexes, and physical and cultural racial characteristics, while emphasising that humans are all one species.