Summary:
- Researchers have observed capuchin monkeys in Brazil kidnapping and adopting howler monkey infants.
- The capuchins appear to be raising the kidnapped howler monkey babies as their own, suggesting a complex social behavior in these primates.
- This behavior is unusual, as capuchins and howler monkeys are typically not known to interact with each other in this way, and it provides insights into the social dynamics and cognitive abilities of these monkey species.