Kandula, an 7-year-old elephant that the Smithsonian's National Zoo, has remarkable problem- solving skills. He can use boxes and stepping stools to reach food that was previously out of reach.

The elephant has the largest brain of any land mammal. Its ‘grey matter’ — crucial to thinking and problem-solving — is also more extensive. Impressive mental feats, therefore, might be ...

Persistence is key: Investigating innovative problem solving by Asian elephants using a novel multi-access box. Animal Cognition, 25 (3), 657-669. doi: 10.1007/s10071-021-01576-3 ...