Comment by jongjong

It's funny because when I read that title, first thought I had was "Whales" but then my second thought was "Probably not; too few of them in number."

But when I saw the photo of the krill, which is whales' main food source, I was like "AHA!"

But no, cattle it is... Though I guess this is probably a more recent development. Without humans, there would surely be a lot fewer cows.