Why
do dogs, unlike wolves, make eye contact with people? New Yale
University research suggests that the unique history of the Australian
dingo can help fill out the evolutionary history of the deep and
enduring connection between humans and dogs.
Domesticated dogs look at their owners to convey and request a
host of information — for instance, for help in solving a difficult
problem. Wild wolves do not. Dingoes appear to represent an intermediate
point in the domestication of wolves.
When dingoes arrived in
Australia some 5,000 to 10,000 years ago, they were likely comfortable
around humans, but not yet fully domesticated. “Dingoes give us glimpse
at what dogs might have been like at the earliest stages of
domestication,” said Angie Johnston, a graduate student at Yale.
The new study led by psychologists Johnston and Laurie Santos published in the journal Animal Behavior
shows dingoes are more likely to make eye contact with people than
wolves are, but for a shorter period than dogs. According to the
researchers, these findings suggest that dogs may have developed the
motivation to make eye contact with people early in their domestication,
but only developed the desire to maintain this contact later in their
evolution as man’s best friend.
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