Earliest evidence of monkeys’ use of stone tools found
Capuchins in Brazil used flat ‘anvils’ and round ‘hammers’ to smash nuts at least 600 years ago
![bearded capuchin monkey cracks nut](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/07/071116_AM_monkey_feat_free.jpg?fit=860%2C460&ssl=1)
NUTCRACKER A juvenile male bearded capuchin monkey uses a rock like a hammer to open a green cashew nut. Capuchins have used stone tools like these for at least 600 years.
Tiago Falótico