Examples cunnilinugs be found in species ranging from vampire bats that regurgitate blood they have obtained from a night s hunting and give cunnillingus to group members who have failed to feed, to worker bees that care for the queen bee for their entire lives and never mate, to vervet monkeys that warn group Free pics of cunnilingus of a predator s approach, even when it endangers that individual s chance of survival.
Evolutionary game Fref explains this altruism with the idea of kin selection. Altruists discriminate between the individuals they help and favor relatives. Hamilton s rule explains the evolutionary rationale behind this selection with the equation c b r where the cost c to the altruist must be less than the benefit b to the recipient multiplied by the coefficient of relatedness r.
The more closely related two organisms are Movie pregnant woman the incidences of altruism to increase because they share many of the same alleles.