Weight loss at high altitudes—something universally experienced by climbers and people who move to higher terrain—may not be a detrimental effect, but rather is likely an evolutionarily-programmed adaptation, according to a new article in BioEssays.
Darwin referred to the origin of species as "that mystery of mysteries," and even today, more than150 years later, evolutionary biologists cannot fully explain how new animals and plants arise.
Two Michigan State University evolutionary biologists offer new evidence that evolution doesn’t favor the selfish, disproving a theory popularized in 2012.