Bigger brains can make animals, well, brainier, but that boost in brain size and ability comes at a price. That’s according to new evidence in which researchers artificially selected guppies for large and small brain sizes.
Bigger brains can make animals, well, brainier, but that boost in brain size and ability comes at a price. That’s according to new evidence in which researchers artificially selected guppies for large and small brain sizes.