In five cases where vertebrates evolved monogamy, the same changes in gene expression occurred each time. In many non-monogamous species, females provide all or most of the offspring care. In ...

Add Yahoo as a preferred source to see more of our stories on Google. Meerkats, as well as humans, are part of what researchers called a "premier league" of monogamy. - Martin Schutt/dpa/AFP/Getty ...

Monogamy in the animal kingdom is a mating system where a pair stays together for an indefinite period. Although only about 5% of animal species adopt this behavior, monogamy offers several ...

A study comparing people in monogamous relationships with those in non-monogamous ones has found that both types are on par insofar as relationship and sexual satisfaction are concerned. It suggests ...

As Valentine's Day approaches, we take a look at monogamy and its alternatives among animals — including humans.

Even among the most durable migratory bird pairings, sexual exclusivity is rarely part of their relationship Nathan H. Lents, Undark For generations, anthropologists have argued whether humans are ...

In the end, Romeo and Juliet, Heer and Ranjha, all died with the knowledge of having found the one. But had they lived to see life unfold, maybe something like Antony leaving Octavia to live with ...

(CNN) — Humans are far more monogamous than our primate cousins, but less so than beavers, a new study suggests. Researchers from the University of Cambridge in England analyzed the proportion of full ...