I did not know that!

Two more totally unrelated but fascinating animal stories:

- In Alaska, seal researchers are using Labrador retrievers to find seal breathing holes in the Arctic. The seals were eluding researchers by digging out caves underneath the snow. That form of stealth camping didn't fool the Labs, who search, nose to the snow, for the holes and then alert researchers by stopping their search and digging. The scientists insert a net into the holes, trap the seals, tag them, and release them.

- In Montana and Wyoming, the U.S. Bureau of Land Management is proposing using a birth control vaccine to limit the population growth of wild horses. The agency is worried about the effects of a growing population of horses at the Pryor Mountain Wild Horse Range.