‘Like butter for bears’: the grizzlies who dine on 40,000 moths a day
Full of fat – some biologists call them “bear butter” – they’ve proved to be an important source of food for the region’s grizzlies. Biologists estimate about 200 bears each year feast on moths in the eastern portion of the carnivores’ range. Each gram of moth offers bears about eight calories, which means some bears will eat up to 40,000 a day.
