Panamanian monkeys have begun to pick up stones, use them as tools, enter their own mini Stone Age

[Judi Lynn]

July 2, 2018 by NED DYMOKE



Habitual stone-tool aided extractive foraging in white-faced capuchins


It may be hard to believe, but for 4,262 million years or so, it was f**king rocks that stumped our ancestors. How do they work? Where is the 'on' button? Why so many sizes? But approximately 2 million years ago some prehistoric early human descendant picked up a rock and started using it as a tool. Like a bad meme or terrible fashion trend, it caught on quickly. Pretty soon, everyone wanted their own rock and before long your very, very early grandparents had begun sharpening them and using them for hunting. It was a glorious time.

There are only 3 known species of non-human primate that use tools: chimpanzees, bearded capuchins, and long-tailed macaques. This population of white-faced non-tufted capuchins on the island of Jicarón off of the coast of Panama has been independent from their tufted brethren for the last 6 million years, roughly as long ago as our last common relatives of the bonobo and chimpanzee. The BBC has a great round-up of non-human primate tool-use, if you're interested in reading more on the subject.

This is a fairly big event, in the grand scheme of things. While it's fairly easy to go on YouTube and find lots of videos of primates using tools, keep in mind that this is a wild population, and that captured animals seem to develop tool use much faster as there's an abundance of time, materials, and zero predators. Researchers believe that this population of capuchins is unique because of the Jicarón island's lack of other ground-based natural predators, meaning that the capuchins have a ton of time to work on the ground and perfect their tool use.

What makes the finding even more interesting is that it hasn't caught on with the rest of the island yet, despite similar habitats. Only a few males on a particular part of Jicarón have developed it, and it does seem to be a learned skill.

More:
https://bigthink.com/ned-dymoke/panamanian-monkeys-have-begun-to-pick-up-stones-use-them-as-tools-enter-their-own-mini-stone-age

[Midnight Writer]

1. Nature senses our decline and is grooming the next species to step up. Good luck, capuchins.

[brush]

2. Crows and ravens and other corvids have been found to use tools.

I used to live in a beach house and would watch seagulls pick up clams and fly up high then drop them on the rocks to break them open to eat them.

[GetRidOfThem]

3. Capuchins are extremely intelligent

I have seen them in Panama. They are one of the most intelligent primates.

No surprises here.

These animals, if they are in the Canal Zone, have been stranded. This is a wild story: As they flooded the valleys to create the man-made lake the feeds the canal with water, sloths and other creatures fled to higher ground, the remaining mountaintops that are pointing out of the lake. So the concentration of creatures became highly condensed, beyond what is sustainable.

Enter tourism and canal safaris. You feed the animals and interact with them, and they seek you out. Tourism has become and important part of their food supply, as has their interactions with humans.

Interesting, if not fascinating, scenario. I am going back to Panama in August.

[Xipe Totec]

4. And so it begins...

“We'll be saying a big hello to all intelligent lifeforms everywhere and to everyone else out there, the secret is to bang the rocks together, guys.”

― Douglas Adams, The Hitchhiker's Guide to the Galaxy