Lawsuit targets Arizona mountain lion hunts

The Center for Biological Diversity is suing the Arizona Game and Fish Department to halt mountain lion sport hunting. Advocates argue current quotas target young lions and threaten the species' future in the state.

4 cases of 'rabbit fever' confirmed on Long Island, health department says

The Suffolk County Department of Health Services said it was investigating four cases of tularemia, a tick-borne disease that can spread through small dead animals, like rabbits.

Scientists discover 'demon' cavefish tucked away in Alabama cave

Researchers have uncovered a new species of blind cavefish hiding in one of the most studied cave systems in Alabama.

VIDEO: Rattlesnakes spotted 'combat dancing' on Southern California street

A video captured by a FOX 11 viewer showing two massive rattlesnakes in Thousand Oaks served as a reminder that as heat rises, so do rattlesnake sightings.

Henry County man saves pregnant fiancée during Florida shark attack

A Henry County man is recovering from surgery after he pushed his pregnant fiancée to safety and fought off a shark in Daytona Beach on Saturday evening.

Antarctica's 'hummingbird' revealed in stunning new NASA radar

NASA has released a striking new radar image from its NISAR Earth-observing satellite that reveals an Antarctic landscape resembling a hummingbird in flight.

First-known freshwater contagious cancer spreading among catfish in Vermont lake

The first-ever transmissible cancer to spread among fish in a freshwater setting has been discovered among brown bullhead catfish in Lake Memphremagog.

There are now more ‘mosquito disease days’ in 95% of major US cities: See the map

Climate change is lengthening mosquito season across much of the U.S., giving disease-carrying mosquitoes more time to spread illnesses. A new analysis reveals which cities are seeing the biggest increases.

Banner Air deploys antivenom helicopter teams: 'Time is tissue'

Banner Air provides a behind-the-scenes look at emergency operations for rattlesnake bite victims located far from medical facilities.