Gorilla Group Size & Dynamics Mimic Human Group Size & Dynamics

A study was published several days ago in the journal Proceedings of the Royal Society B examining the social relationships among 13 mountain gorilla groups in Rwadna over 12 years. Typically, mountain gorillas have social groups of 12 to 20 individuals. A group of this size often yields the most diversity in relationships. Mountain gorillas... Continue Reading →

Chimpanzees Console A Bereaving Mother

Zoë Goldsborough, of Utrecht University, and crew have published an open access special feature in the journal Primates. Their paper documents the observation of chimpanzees consoling a bereaving chimpanzee mother who experienced a still birth. This is a fantastic study that builds on our prior knowledge that chimpanzees do mourn the death of a group member... Continue Reading →

Positive news on the conservation front, where the number of mountain gorillas is over a 1,000 individuals. The survey found the Virunga population has risen to 604 among in 41 social groups... Compared to the 480 individuals counted in the last survey in 2010. The only other place mountain gorillas survive is in Uganda’s Bwindi... Continue Reading →

The Newly Discovered And Nearly Extinct Tapanuli Orangutan Species

Up to today, there were two known Orangutan species, both critically endangered. There are about 4,000 more Sumatran orangutans (Pongo abelii) than Bornean orangutans (Pongo pygmaeus) currently living in the Indonesian rainforest. A new orangutan family member, the Tapanuli orangutans (Pongo tapanuliensis), was described in a paper published Thursday in Current Biology. And with less than 800 individuals, that makes... Continue Reading →

Brazilian Capuchin Stone Tool Use

Researchers from Oxford University, working in Brazil, found new archaeological evidence suggests that Brazilian capuchins have been using stone tools to crack open cashew nuts for at least 700 years. Researchers say, to date, they have found the earliest archaeological examples of monkey tool use outside of Africa. In their paper, published in Current Biology,... Continue Reading →

Wild Gorilla Happy Meal Time Songs

Many animals, including chimpanzees and bonobos, have food related calls... But aside from anecdotal reports, there was no evidence of this behavior in gorillas, until now. A new paper in PLoS One documents that the wild western lowland gorillas in the Republic of the Congo sing and hum when eating, as a way to express... Continue Reading →

A newborn baby Western lowland gorilla naps in the arms of Frala, its mother at Sydney’s Taronga Zoo. It is about a week old and we don't know if the new addition is male or female.

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