Science

The Bumblebee Hunter

The Franklin bumblebee is so small and hard to track that it's not clear if it's gone extinct. We tag along as one man makes his annual trek to try to find it.

Has Salt Gotten An Unfair Shake?

For years, we've been told that less salt is better. But some scientists say that the world's universal seasoning has been maligned and that moderate salt intake is healthier for many people.