evolution

A phylogenetic and epidemiological analysis suggests that people who died from Ebola possibly spread the virus to more people than those who survived.
The relative size of the human male's penis and testes can be reduced to our species' mating strategies, and can provide some surprising insights into early human culture.
Parasitism evolved at least 223 times, far more than the previous estimate of 60. It arose more times in certain phyla (e.g., arthropods, nematodes, flatworms, and mollusks) than in others. Today, about half of all animal species are parasitic.
As a society, we never grew up beyond high school. Not being smart continues to be cool. Rejecting the collective wisdom of scientists, economists, academics, and journalists is applauded. Spurning the "establishment" has become the new national pastime.