Sika stag deer staring at camera

The Surprising Frequency of Interspecies Mating

Sometimes different but related species can reproduce. When two different species successfully mate, the resulting offspring is called a hybrid.
Cougar

Bringing Back the Cougars

A controversial proposed solution to the Eastern United States' deer population problem.

The Improbable Fanged Deer of Afghanistan

Last seen more than a half century ago, a rare fanged deer has been rediscovered in Afghanistan