"We have already discovered two species that are very intelligent but technically less advanced than us — the common c…"

"White blood cells and other cells of ours actively seek out and kill foreign microbes. The specific antibodies that w…"

"Technological advances seem to come disproportionately from a few very rare geniuses, such as Johannes Gutenberg, Jam…"

"The infectious diseases that regularly visited crowded Eurasian societies, and to which many Eurasians consequently d…"

"Compressing 13,000 years of history on all continents into a 400-page book works out to an average of about one page …"

"The details of which candidate said what during a single televised debate in October 1960 could have given the electo…"

"How can we explain simultaneously this general pattern of female parental care and also its numerous exceptions? The …"

"In particular, while natural selection favors both males and females that leave many offspring, the best strategy for…"

"Though seemingly remote from human sexuality, shorebird sexuality is instructive because it illustrates the main mess…"

"Put another way, the chimpanzees' closest relative is not the gorilla but humans."