Thinking abstractly like a duck(ling): Ducklings, like human infants, show signs of abstract conceptual thought

Wasserman, E. A. (2016, July 15). Thinking abstractly like a duck(ling): Ducklings, like human infants, show signs of abstract conceptual thought. Science. American Association for the Advancement of Science. https://doi.org/10.1126/science.aag3088