{"fact":"Some crows, such as New Caledonian crows, have been observed making tools in the wild, not just using existing objects, suggesting a higher level of cognitive ability related to tool use.","context":"Some corvids have demonstrated the ability to manipulate nonfunctional novel objects into functional tools to retrieve food rewards.","source":"Jayden van Horik; Nathan J. Emery, Evolution of cognition, 10.1002/wcs.144","index":400}