Animal biology is helping to cure many more human ailments than we ever thought possible:
[Zoobiquity author Barbara Natterson-Horowitz] points out that the risk of cancer should increase as animals get bigger. The more cells an animal has, the more tickets it has in the oncological lottery. But whales defy this expectation. The biggest whales often live more than 100 years, despite the fact that they should be dead from cancer long before then. Some scientists have speculated that whales have evolved some powerful anti-cancer weapons. No one knows what those weapons actually are, but we’d do well to find out.
Previous discussion of Natterson-Horowitz's book here.