Although wolves and dogs are
closely related, they show some striking differences. Scientists from the
Messerli Research Institute at the University of Veterinary Medicine, Vienna
have undertaken experiments that suggest that wolves observe one another more
closely than dogs and so are better at learning from one another. The scientists
believe that cooperation among wolves is the basis of the understanding between
dogs and humans.
A pack of wolves howling
Wolves were domesticated more
than 15,000 years ago and it is widely assumed that the ability of domestic
dogs to form close relationships with humans stems from changes during the
domestication process.
But the effects of
domestication on the interactions between the animals have not received much
attention. The point has been addressed by Friederike Range and Zsófia Virányi,
two members of the University of Veterinary Medicine, Vienna (Vetmeduni Vienna)
who work at the Wolf Science Center (WSC) in Ernstbrunn, Niederösterreich.
Wolves copy other wolves
solving problems
The scientists found that
wolves are considerably better than dogs at opening a container, providing they
have previously watched another animal do so. Their study involved 14 wolves
and 15 mongrel dogs, all about six months old, hand-reared and kept in packs.
Group behaviour: hunting
Each animal was allowed to observe one of two situations in which a trained dog
opened a wooden box, either with its mouth or with its paw, to gain access to a
food reward. Surprisingly, all of the wolves managed to open the box after
watching a dog solve the puzzle, while only four of the dogs managed to do so.
Wolves more frequently opened the box using the method they had observed,
whereas the dogs appeared to choose randomly whether to use their mouth or
their paw.
Watch closely …
To exclude the possibility
that six-month old dogs fail the experiment because of a delayed physical or
cognitive development, the researchers repeated the test after nine months. The
dogs proved no more adept at opening the box than they were at a younger age.
Another possible explanation for the wolves' apparent superiority at learning
is that wolves might simply be better than dogs at solving such problems. To
test this idea, the researchers examined the animals' ability to open a box
without prior demonstration by a dog. They found that the wolves were rarely
successful.
"Their problem-solving capability really seems to be based on
the observation of a dog performing the task," says Range. "The
wolves watched the dog very closely and were able to apply their new knowledge
to solve the problem. Their skill at copying probably relates to the fact that
wolves are more dependent on cooperation with conspecifics than dogs are and
therefore pay more attention to the actions of their partners."
The researchers think that it
is likely that the dog-human cooperation originated from cooperation between
wolves. During the process of domestication, dogs have become able to accept
humans as social partners and thus have adapted their social skills to include
interactions with them, concomitantly losing the ability to learn by watching
other dogs.
Journal
Reference:
- Friederike Range, Zsófia Virányi. Wolves Are Better Imitators of Conspecifics than Dogs. PLoS ONE, 2014; 9 (1): e86559 DOI: 10.1371/journal.pone.0086559
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