Kin recognition: First, if individuals have the capacity to recognize kin and to discriminate (positively) on the basis of kinship, then the average relatedness of the recipients of altruism could be high enough for kin selection.

This also allows members of the clan to be unite, to act together and always to recognise kin.

At that time, he and other officers said, officers usually spoke in accents recognizable as upper class - reflecting the British tendency to use speech patterns as a kind of vocal DNA to recognize their social kith and kin.

Richard Dawkins hypothesized that an animal had the ability to recognize kin and non-kin based on its own scent and defined this phenomena as the 'armpit effect.'

She previously showed that squirrels recognize kin, but the new work suggests that they can "tell the difference between Sue and Mary."

Being able to recognize kin is important for beaver social behavior and it causes more tolerant behavior among neighboring beavers.

Tadpoles have been shown to be able to recognize kin.

When she returned she no longer recognized kin of blood, only kinship with those of her calling.

This increased ability to sense chemicals has allowed for heightened abilities to identify prey, recognize kin, choose mates, locate shelters, follow trails, and more.