'Lucy' Species May Have Been Polygynous

The ancient relative of humanity dubbed "Lucy" may have been one of a harem of gals who mated with a single male, according to research that suggests her species was polygynous. Among the earliest known relatives of humanity whose skeletons were made for walking upright was Australopithecus afarensis, the species that included the famed 3.2-million-year-old Lucy. To learn more about Lucy's species, researchers investigated the area of Laetoli in northern Tanzania, which previously yielded t