Park rangers: 70-year-old man fends off cougar attack with rock

The unidentified man told authorities that he was hiking through some trees when a cougar jumped out and knocked him to the ground.

Yosemite Valley to reopen after fears of flooding recede

Temporarily shuttered parts of Yosemite Valley will reopen earlier than expected after fears of flooding receded Saturday, park officials announced.

Most of Yosemite National Park closed until next week

The Yosemite area is bracing for flooding, and rangers have closed much of the famous park to visitors for the next few days. 

Scientists discover 3 new sea worms that glow in the dark

The newly-discovered bioluminescent Polycirrus worms were named after creatures from Japanese folklore and an influential marine biologist.

San Joaquin bracing for high snowmelt water flows

Near Vernalis in San Joaquin County, the San Joaquin River is fed from the north by the high-flowing Stanislaus River and from the south where the Tuolumne River dumps into it.

Black bear ‘destroyed’ after killing hikers’ dog, hiding body in Canada's Jasper National Park

The attack happened around 4 p.m. Saturday at the Alberta park situated in the Canadian Rockies, as two hikers and their two dogs were returning to the trailhead on Wabasso Lake Trail, Parks Canada said.

Once-drained Tulare Lake growing due to snowmelt, threat of flooding a concern

Several communities across California are preparing for trouble as the record Sierra snow starts to melt. The concern is greatest for Tulare Lake, a natural lake that was drained to make way for farming. That lake has reappeared and now threatens entire towns.

Watch: Moose helps itself to popcorn and a Happy Meal at Alaska movie theater

"I do not know if a Happy Meal is good for a moose or not. However, I can confidently say that it’s not in its natural diet," a wildlife biologist quipped.

California's water and snowpack Motherlode: a blessing or a curse?

California's Motherlode of water is a blessing and a curse. The California Department of Water Resources is telling the 29 public water agencies serving 27 million Californians, they will get 100% the water they request. That has not happened in 17 years.

Loons are falling from the sky in Wisconsin

There have been reports of loons stranded on the ground after they fell from the sky.

Bear spared from execution despite fatal mauling of Italian woman

A brown bear in Italy that had attacked and killed a woman while she was running in the mountains has been granted a reprieve from being put down.

Video: Man jumps into water to harass sea lions at San Francisco's Pier 39

A video of a man harassing dozens of sea lions at Pier 39 in San Francisco has gone viral. The sea lions can be seen barking and jumping to safety as the man ran across their sunbathing platforms.

Bear scare caught on North Carolina man’s security camera

The man was on his phone, relaxing, oblivious to the fact that he was seconds away from staring down a dangerous wild animal.

Here are the most popular national parks for birdwatching this spring

The spring bird migration is a period of time between February and June when birds leave their winter homes in the south and begin their journeys north.

7-foot alligator found in NorCal river dies after rescue

A seven-foot alligator was found in a California river and wildlife authorities aren’t sure how the animal got there.