Newly sworn-in US President Donald Trump said on Monday he will declare illegal immigration at the US-Mexico border a national emergency, send troops there and ramp up deportations of criminal ...

Extremely rare footage shows the cougar, or mountain lion, attempting to gain an edge on several goats perched on a cliff.

Mountain lions are much more widespread than and adaptable than mountain goats, roaming from the Canadian Yukon to the ...

The lawsuit, filed by the Alliance for the Wild Rockies and Council on Fish & Wildlife, comes less than three weeks after the ...