In a tally of nerve cells in the outer wrinkles of the brain, a dog wins
Comparing neuron numbers across species could provide clues to animals’ smarts
BRAIN GAME Despite being relatively large, a brown bear’s brain is sorely lacking in nerve cells, while a raccoon’s cat-sized brain is packed full, finds a new study that tallies these neurons in carnivores.
Jeremy Teaford/Vanderbilt University