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30 31 kin kindness all for one and one for all Many creatures perform seemingly selfless acts which protect the genome of their close kin, or even their entire tribe. Altruism operates as a mechanism in evolution because adaptations can also occur at the group level. Although personal selfishness tends to beat altruism within a group, altruistic groups generally beat selfish groups. Altruistic behavior ensures the survival of group characteristics, both genetic and memetic. In social insects ants, wasps, bees and termites, sterile workers devote their entire lives to the queen, with no chance of breeding themselves. Vampire bats opposite top share blood with hungry neighbors on returning to their caves, but keep a tally, and expect a return of the favor. Altruism has behavioral mottos family first, help your friends and theyll help you, safety in numbers, care for the sick and elderly. A vervet monkey will make an alarm call to warn chums of an unnoticed predator, despite making itself a target. Extending their sense of kin, dogs occasionally adopt orphaned cats, squirrels, or ducks. Dolphins occasionally assist sick, injured, or struggling animals, their extended evolutionary kin. Above Vampire bats exhibit one of the most universal kinds of altruism, reciprocity. Tending to roost in the same place every night, they get to know each other and will regurgitate blood for a hungry neighbor if the favor is likely to be reciprocated. Vervet monkeys, likewise, will come to the aid of others who have helped them in the past. Below Walruses will adopt and rear young calves from different families whose parents have died.
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