Crabeater seals, despite their names, don’t eat crabs. They eat krill. Lots and lots and lots of krill – 80 million tons – and small fish and squid. After much of the whale population was killed off in Antarctica in the early 1900s, the crabeater seal population took off. Estimates of their numbers are around 30 million. Not a lot is known about them, because they live in the Antarctic ice pack. That’s a difficult and expensive place for humans to get to. The seals grow to be about 9 or 10 feet long, and can weigh up to 500 pounds.