Latest Knuckle-walking Stories
A new study discovered that the wrist bones of some primate species challenge the theory that humans evolved their two-legged upright walking style from a knuckle-walking ancestor. "We have the most robust data I've ever seen on this topic," said Daniel Schmitt, a Duke University associate professor of evolutionary anthropology. "This model should cause everyone to re-evaluate what they've said before." The findings are published in this week's journal Proceedings of the National Academy of...
A new study provides support for the hypothesis that walking on two legs, or bipedalism, evolved because it used less energy than quadrupedal knucklewalking. David Raichlen, an assistant professor of anthropology at The University of Arizona, conducted the study with Michael Sockol from the University of California, Davis, who was the lead author of the paper, and Herman Pontzer from Washington University in St. Louis. Raichlen and his colleagues will publish the article, "Chimpanzee...
The bonobo (Pan paniscus), until recently is usually called the pygmy chimpanzee and less often the dwarf or gracile chimpanzee. It is one of the two species of chimpanzees. Physical characteristics Its head is smaller than that of the Common Chimpanzee but has a higher forehead. It has a black face with pink lips, small ears, wide nostrils, and long hair on its head. Females have slightly prominent breasts in contrast to the flat breasts of other female apes, though not as prominent...
- A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
- A gentle breeze; a waft; a breath.
- Any rumor that engages general attention.
- A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
- To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
- To breathe in or as in sleep.
- To utter in a whining or monotonous tone.