In the wild, survival means adaptation—and for some animals, that means changing gender! From fish and amphibians to reptiles and invertebrates, these creatures can switch sexes to thrive in their ...

Michael Vernon, 50, has lived with PTSD and post-concussion syndrome since 2008 and has owned Maverick, a Doberman pincher, for six years.

Snakes, a diverse and fascinating species found globally, captivate many enthusiasts, leading to a market for rare and exotic ...

Deep in the Colombian Amazon region of Serrania De La Lindosa, a roughly 12-mile stretch of rock is covered in a vast ...