When we imagine alien life, we picture monsters, insects, or tentacles—but what if the most realistic aliens are human-like? Evolution tends to solve the same problems with similar designs, and ...

Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn’t frightening enough. An outlandish study asserts that aliens might have abducted us ...

Their four-legged bodies worked well in these environments. Meanwhile, for some mysterious reason, human ancestors began to walk upright on two feet, and this new habit, called bipedalism, set the ...