The hell am I reading?

Well, every day you learn something new...

Rats cannot vomit, but they do regurgitate occasionally. Regurgitation is different from vomiting. Vomiting is the forceful expulsion of stomach contents from the mouth. Vomiting is an active process: it is a complex, powerful reflex requiring the coordination of many muscles. In contrast, regurgitation is the passive, effortless flow of undigested stomach contents back into the esophagus. Regurgitation happens without any forceful abdominal contractions.

Comments

[Biker_Dash]

Ok...