Why big brains are rare

Do big-brained creatures steal energy for them from other organs or eat more to supply this expensive tissue? New work in large-brained fish suggests skimping elsewhere is not enough to meet the energy demands of an extreme brain….

Do big-brained creatures steal energy for them from other organs or eat more to supply this expensive tissue? New work in large-brained fish suggests skimping elsewhere is not enough to meet the energy demands of an extreme brain….