It's not easy to get a glimpse of the critically endangered Saharan cheetah (Acinonyx jubatus hecki), the rarest of the six cheetah subspecies.
With a body the size of a small child and a wingspan of up to two meters, the Blakiston’s fish owl (Bubo blakistoni) is the largest owl in the world.
The world's rarest big cats have become ever-so-slightly less rare over the past decade. According to a census released this week, there are now at least 57 Amur leopards (Panthera pardus orientalis) in Russia.
Human actions may have caused the species’s populations to grow huge as well as led to its demise
Conservation groups and energy-development companies have been at odds the last few years over an odd, dancing bird called the greater sage-grouse (Centrocercus urophasianus).
Nepal has a lofty goal: The country wants to have at least 250 Bengal tigers (Panthera tigris tigris) within its borders by the year 2022. They've already made pretty amazing progress, growing the population from 121 in 2009 to 198 in 2013.
A primate that lives only in wetlands? That alone makes the Alaotran gentle lemur unique. But this tiny lemur lives in incredibly limited constrained habitat, which continues to shrink around it.