Natural History Wanderings

The New York Times  reports

So-called “epigenetic clocks” are helping wildlife biologists estimate the ages of animals far more easily than in the past.

Read more at How Old Is That Polar Bear? The Answer Is in Its Blood.

An epigenetic clock is a biochemical test that can be used to measure age. Read more about epigenetic clocks at Wikipedia https://en.wikipedia.org/wiki/Epigenetic_clock