👉 Hemivagotony is a scientific term that refers to a type of vertebrate, specifically a fish or a mammal, where one side of its body (the "vagus" part) has more than two segments. This allows for an additional sense of hearing and perception in the animal. The term "hemivagotony" was first introduced by the American zoologist William Henry Goodwin in 1905. It is a characteristic that distinguishes some fish from
