For the past 50 years, international animal cognition research has focused on how tool use is related to animal intelligence. But new research casts doubt on long-held assumptions.
Are there innate differences between female and male brains?
SebastianKaulitzki/Science Photo Library via Getty Images
We have more neurons in our cortices than any other species, courtesy of an early technology – and along with them came our long, slow lives, with plenty of chances to gather around the dinner table.
Artistic view of the evolution of elephants. From left to right, Moeritherium (30 million years old), Deinotherium (5 million years old) and a modern African elephant.
Alex Bernardini (Simplex Paléo) and Sophie Vrard (Creaphi).
A shift in climate, along with other environmental disruptions and the invasion of competitors and new predators all likely played an important role in reshaping ancient elephants' brains.