A new study reports primates have the ability to distinguish between small and large quantities of objects, regardless of the surface area on which the objects are placed.
Researchers proposed four criteria to understand and investigate animal belief systems. Findings suggest flexible behavior caused by belief is exhibited in the behavior of rats, chimpanzees, and dogs.
Neuroimaging reveals several differences in the brains of lonely people, specifically in the default network. Researchers found greater gray matter density and stronger connectivity in the default networks of lonely people.