Four of the five Great Apes are found here: Mountain gorillas, Lowland gorillas, Chimpanzees and Bonobos.
Species from squids to chimpanzees have been caught doing it from time to time.
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These include camels, zebras and snakes, but not elephants, monkeys, gorillas, chimpanzees or big cats.
Dr Jensen's previous experiments have shown that chimpanzees are willing to punish actual thieves.
Chimpanzees were nearly four times more likely to wait for the big reward than humans were.
In Current Biology, Marc Hauser of Harvard University and his colleagues compare chimpanzees and humans directly.
According to Wolfe and his team, malaria jumped to humans from our closest living relatives: chimpanzees.
The virus still circulates in three small communities of chimpanzees like these from a documentary.
Hunters, disease and habitat loss are decimating our closest living relatives--chimpanzees, orangutans, gorillas and bonobos.
Some chimpanzees host the SIV virus which is regarded as being similar to HIV.
"We know HIV-1 comes from chimpanzees but we know little beyond this, " he said.
At different genes, humans share a common genetic ancestor with chimpanzees at different times.
Chimpanzees hoot, blow Bronx cheers, wave sticks, clap their hands and drum on trees.
Each animal viewed several nine-second video clips of other chimpanzees either yawning or doing something else.
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But the use of chimpanzees in his research made him a target of animal welfare advocates.
Chimpanzees enjoy trying to solve brainteasers, according to research done at Bedfordshire's Whipsnade Zoo.
In recent years, this theme has even been extended to non-human primates, such as chimpanzees.
Chimpanzees are so closely related to us that they share 99% of their DNA with humans.
It is thought that humans get ebola by coming into contact with infected chimpanzees or monkeys.
Dr Allman's group found that female chimpanzees live, on average, about 40% longer than males.
Baboons and chimpanzees both belong to which of these groups: apes, monkeys, or primates?
But the new study, which compares chimpanzees to young children, makes de Waal rethink that view.
Many areas where chimpanzees live are also home to the red colobus monkey, which the chimps hunt.
No other animal not even our closest relatives, bonobos and chimpanzees can interpret our gestures as flexibly as dogs.
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Visitors are able to observe the chimpanzees as they explore the landscaped gardens complete with a moat and exotic vegetation.
Parrots, chimpanzees and even pigeons have been shown to have an advanced understanding of numerical concepts.
Something similar has since been found to apply to fish, lizards, ring-tailed lemurs, rhesus monkeys, chimpanzees and humans.
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The conduit from infected chimpanzees to humans was most likely the mosquito, a common malaria carrier even today.
This simple finding has huge implications for tests in which chimpanzees need to pay attention to human experimenters.
The sounds made by chimpanzees seemed to be little more than emotional outbursts without much meaning or intention.
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