Posted: 17 Feb 2015 05:29 PM PST
New research explores why caring for young is shared unequally between the sexes in so many animal species. Parental care involves one of the fundamental conflicts of interest between the sexes. Care by either partner is beneficial to both partners as it increases the health and survival prospects of the common young; providing care is costly only to the caring individual. As a result, each partner does best in a situation where most of the care is provided by the other partner--an outcome that is clearly impossible.
댓글 없음:
댓글 쓰기