Human bipedalism -- walking upright on two legs -- may have evolved in trees, and not on the ground as previously thought, according to a new study. Human bipedalism -- walking upright on two legs ...

Rhianna Drummond-Clarke When human ancestors evolved to walk upright, they may have done so in trees, suggests new research published Wednesday in the journal Science Advances. The findings ...

Humans’ ability to walk upright on two legs may have evolved in trees, rather than on the ground, according to scientists studying wild chimpanzees in Tanzania. This contradicts the widely ...

With so many options for stunning maple trees that will add drama to your yard, you can think outside the box. Consider if you'd prefer a cascading, weeping, or upright growth style and what ...