Whales do all kinds of amazing things, but their milk is pretty incredible. It’s about 50 percent fat, and it helps baby whales plump up fast to ensure their survival. It would be cool if we could develop something like this for our preemies. In fact, a baby blue whale can gain up to 200 pounds in a single day. For a human, that would be bad, but for a whale that’s good news. Also, whales have nipples. Think about that for a second.