Primates

Monkeys Get More Selective With Age

As people get older, they become choosier about how they spend their time and with whom they spend it. Now, researchers reporting in the Cell Press journal Current Biology on June 23 find, based on a series of experimental and behavioral studies, that similar changes take place in Barbary macaques. The findings offer an evolutionary perspective on why aging humans…

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Humans Have Faster Metabolism Than Closely Related Primates, Enabling Larger Brains

Loyola University Chicago researchers are among the co-authors of a groundbreaking study that found humans have a higher metabolism rate than closely related primates, which enabled humans to evolve larger brains. The study, published in the journal Nature, found that humans also have a higher percentage of body fat, providing the energy reserves to fuel their faster metabolism. The findings…

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Western Lowland Gorilla Genome Mapped with New Level of Accuracy

The genome of the Western lowland gorilla (Gorilla gorilla ssp. gorilla) has been sequenced at a high level of quality beginning to approach that of the human genome, says a team of scientists led by Prof. Evan Eichler from the University of Washington. Prof. Eichler and his colleagues used long-read sequencing technology, along with a unique combination of algorithms, to…

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First Discovery of A Hibernating Primate Outside Madagascar

Hibernation is a state of energy conservation during which body temperature and metabolism are drastically reduced. If this state lasts longer than 24 hours, it is called hibernation. Shorter periods are called daily torpor. There are many mammals that hibernate. However, among primates hibernation is a rare capability, as it had been previously found in three species of lemurs only.…

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New fossil could reshape our understanding of ape evolution

A fragmented skeleton dug out from a Spanish landfill may force scientists to redraw their theories on the ancestor of humans and all other apes. Pliobates cataloniae, described in the journal Science, reveals that the common ancestor of humans, gorillas and gibbons may have looked more gibbon-like than previously thought. Researchers believe that Old World monkeys and apes split off from…

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Chimpanzees Shed Light on Origins of Human Walking

A research team led by Stony Brook University investigating human and chimpanzee locomotion have uncovered unexpected similarities in the way the two species use their upper body during two-legged walking. The results, reported in Nature Communications , indicate that our early human ancestors, including the famous fossil ‘Lucy’ (a species known as Australopithecus afarensis), may have been able to use their torsos to…

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