Thanks to widespread pet vaccinations, effective post-exposure treatment and the relative rarity of undetected bites by rabid animals, the number of human deaths from rabies in the United States caused has declined to an average of only one or two per year—far less than the number of human...

Once robust, populations of cougars (also known as mountain lions or pumas) have declined drastically across most of their range in the Americas. The population decline is due to the impact of extensive hunting and predator control, in addition to continued habitat loss and fragmentation. Cougars...