Every month, nearly 2,000 Sonoran Desert animals cross a wildlife bridge over busy Oracle Road, or move through an oversized ...

Lawyers for President Donald Trump's administration say he has the authority to abolish national monuments meant to protect ...

A couple dozen bighorn sheep in the Muddy Mountains are moving across state lines to help regrow the population in Utah.

VALLEY OF FIRE — Blindfolded, sedated and dangling 100 feet above the ground in a net off a helicopter, dozens of bighorn sheep are less than a day away from a new beginning — if they make it at all.

Surprise police are asking for people to come forward with tips after the body of Raquel Marie Morales was found in a landfill in April.