13-07-30 The threat of infants being killed by unrelated males is the key driver of monogamy(一夫一妻制) in humans and other primates. The study by academics from UCL, University of Manchester, University of Oxford and University of Auckland, is the first...
12-09-26 Coyotes(土狼) living in cities don't ever stray from their mates, and stay with each other till death do them part, according to a new study. The finding sheds light on why the North American cousin of the dog and wolf, which is originally native...