fnancially supported by the National Natural Science Foundation of China(No.32070446).
Infant-care behavior,a range of caring behaviors by parental or alloparental individuals towards infants unable to live independently,plays asignifcant role in the survival of infants and the continuation of the speci...
supported by the National Natural Science Foundation of China(31830085);the Second Tibetan Plateau Scientific Expedition and Research program(2019QZKK0501).
Altruism is difficult to explain evolutionarily and to understand it,there is a need to quantify the benefits and costs to altruists.Hamilton’s theory of kin selection argues that altruism can persist if the costs to...