Sentences with phrase «observes chimpanzee»

You can essentially just observe chimpanzees in their natural environment and identify them individually based on their facial features,» she said.

Jane Goodall began to observe chimpanzees in the Gombe forests of Tanzania 45 years ago.

Between February 1999 and June 2001, Morgan and Sanz spent a total of 365 hours observing the chimpanzees.

Eighteen field assistants at Gombe, many of whom have been observing chimpanzees for up to 35 years, rated the primates using the questionnaire starting in October 2010.

There, she was hired by a famous anthropologist to observe chimpanzees in Tanzania, and her life's work began.

Goodall's work observing chimpanzees fired my own devotion to animals into a full - blown passion.

This may not sound exciting but it was only 50 years ago or so that Jane Goodall, while observing chimpanzees, discovered that human beings were not the only animals capable of tool use.

Not exact matches

Such sudden upward shifts from mechanical routine towards originality and improvisation have been observed by ethologists throughout the animal kingdom from insects upward to birds, rats and chimpanzees.

So say researchers who have observed wild chimpanzees throw back fermented tree sap.

Researchers have long explored this idea by observing animals such as chimpanzees, dolphins and elephants, but biologist Natalia Borrego of South Africa's University of KwaZulu - Natal focuses on big cats.

Francys Subiaul of the George Washington University and his colleagues showed that captive chimpanzees are able to make judgments about the reputation of unfamiliar humans by observing their behaviour — whether they were generous or stingy in giving food to other humans.

By systematically observing the spontaneous interactions between zoo visitors and chimpanzees at Furuvik Zoo in Sweden, researchers found that both species imitated to a similar extent.

Researchers did not observe the first deadly chimpanzee raid until 1974, more than a decade after Jane Goodall started watching chimps at the Gombe reserve.

What's more, although cannibalism has been observed in a variety of primates, including chimpanzees, bonobos, orangutans, several monkeys, and perhaps even gorillas, all known victims of such cannibals have been infants or juveniles.

However, their behaviour is a clear sign that six - year - old children as well as chimpanzees are eager to observe how uncooperative members of their community are punished,» adds Nikolaus Steinbeis, the other first author of the study and scientist at both MPI CBS and University College London.

The scientists observed similar occurrences in chimpanzees.

Over the last few decades, researchers in Africa have observed males in rival troops of chimpanzees raiding and killing (video) each other.

Rhythmic behavior has recently been observed in other animals, including parrots, budgerigars, sea lions, rhesus monkeys, and chimpanzees, although in the majority of these cases animals were explicitly trained to synchronize.

Investigators have observed geophagia in more than 200 species of animals, including parrots, deer, elephants, bats, rabbits, baboons, gorillas and chimpanzees.

Louis Bolk, and later Gavin De Beer, Desmond Morris and Stephen Jay Gould, observed that human beings have more in common with infant chimpanzees than with their adult parents.

Murder has been observed in animals ranging from chimpanzees to wolves to marmots, a type of oversized squirrel.

In a second example of chimpanzee grieving, a research group led by Dora Biro, a zoologist at the University of Oxford in the U.K., observed two chimp mothers carrying the remains of their dead infants for weeks.

That study comes from behavioral ecologist Christophe Boesch of the Max Planck Institute for Evolutionary Anthropology, who spent years observing wild chimpanzees in the Taï National Park in Côte d'Ivoire.

Christophe Boesch, a primatologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, says that his team has observed similar behavior among chimps at Tai Forest in the Côte d'Ivoire and agrees that «we have certainly underestimated awareness of death in chimpanzees.»

Before this study, scientists debated how these immune genes can evolve rapidly (which is necessary to keep up with the fast - evolving parasites), whilst also showing little or no evolutionary change in their function over millions of years, as observed between humans and chimpanzees.

Dr Newton - Fisher, based in the School of Anthropology and Conservation (SAC) at Kent, and Stefano Kaburu, from the Department of Population Health and Reproduction, School of Veterinary Medicine, UC Davis, University of California and formerly of SAC, observed grooming interactions between members of a community of chimpanzees in the Budongo Forest Reserve in Western Uganda.

Little is known about chimpanzee birth in the wild because only five births have ever been observed, says Hitonaru Nishie at Kyoto University in Japan.

According to the researchers who recorded the events with a video camera (see video above), this is the first time such compassionate mourning behavior has been observed outside of humans and chimpanzees, and it could indicate that mourning is more widespread among primates than previously thought.

Shows of frustration have been observed in chimpanzees, pigeons and even fish, «but we don't know much about what function they serve,» she said.

One - on - one encounters between females are generally rare, giving researchers few opportunities to observe signs that would clue them in to each chimpanzee's relative rank.

Researchers from the Max Planck Institute for Psycholinguistics in Nijmegen, The Netherlands, observed that orphaned chimpanzees frequently engaged in social play, but their play bouts were much shorter and resulted in aggression more often.

The researchers say that the apparent similarity between human children and young chimpanzees in the observed male bias in object manipulation, and manipulation during play in particular, may suggest that object play functions as motor skill practice for male - specific behaviours such as dominance displays, which sometimes involve the aimed throwing of objects, rather than purely to develop tool use skills.

In an earlier study at Gombe (Tanzania), immature female chimpanzees were also observed to pay closer attention to their mothers using tools and became proficient tool users at an earlier age than males.

Cordoni et al. observed that play dynamics in lowland gorillas are different from those in chimpanzees.

Mike Tomasello of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, and others have compiled a list of gestures observed in monkeys, gibbons, gorillas, chimpanzees, bonobos and orang - utans, which reveals that gesticulation plays a large role in their communication (Gesture, vol 5, p...

This procedure was repeated with two different chimpanzee groups (Group 1 and Group 2) such that chimpanzees in both groups observed a pair of trained group members performing each of the foraging behaviors.

In each group, before the experiment began the chimpanzees could observe both models A and B simultaneously perform their trained solution to the task during 20 - minute sessions, with one session per day, conducted over 10 days (Fig. 2).

The «Four - Year War» from 1974 — 1978, as Goodall later described it, represents the only civil war ever observed in wild chimpanzees.

Webb said she and her colleagues observed that many chimpanzees comfort others in distress consistently over their lifespan, which provided the first evidence of an empathetic personality.

The team also chose to observe seven HARs in more detail, each of which differs between humans and chimpanzees in several places.

Through close observation of chimpanzees, participants observe how primates function in their habitat and collaborate with leaders in chimpanzee communication who work to maintain the health and well - being of these creatures in captivity.

McDonnell shows how childhood dreams can shape an adult life in this subtle, moving story of a young Jane Goodall, who loves to explore and observe the outdoors with her favorite toy, a stuffed chimpanzee.