Green Group discussion

Lesser apes and monkeys in this thread please!

Pig tailed macaques have been studied in oil palm plantations and observed to be hunting and eating a substantial amount of rats.

https://gizmodo.com/these-rat-eating-...

" Pig-tailed macaques are currently listed by the International Union for Conservation of Nature as a vulnerable species, primarily owing to habitat loss and human hunting. Oil palm plantations are responsible for much of this habitat loss; oil palm plantations currently cover nearly 190,000 square kilometers (73,400 square miles) of land around the world. "

But the pest control function could be their saving. The scientists are surprised that the macaques ate so many rats; I am thinking it could be to make up for the fact that palm fat contains just about no nutrients. Ponies grazing on the windswept islands off Scotland have been observed eating the heads of sea bird chicks, just to get nutrients.

A Primate's Memoir


Great read about olive baboons. And how to study them.

"Associations between stress and survival are extremely difficult to test in a natural scenario. They require very frequent data collection for a very long period of time, in this case through the Amboseli Baboon Research Project, which was launched in 1971.

Amboseli females are followed daily from birth to death, their activity is monitored, big events in their lives are recorded, and their feces are periodically collected.
...
"A new study appearing April 21 in Science Advances shows that female baboons with high life-long levels of glucocorticoids, the hormones involved in the 'fight or flight' response, have a greater risk of dying than those with lower levels."

https://phys.org/news/2021-04-lifelon...