A disease that afflicts sea stars has taken root in Pacific waters from Alaska down to California, including portions of Redwood National and State Parks. Biologists say this year's mass mortality tied to the disease is "unprecedented."
Timing often is happenstance, but with Earth Day arriving next week, word of high mercury levels in fish in national parks from Alaska to Colorado is particularly sobering. In some cases, the levels exceed limits OKed for human consumption.
A small number of fish released into the Colorado River within Grand Canyon National Park hopefully will turn into tattletales.
Sierra Nevada Bighorn Sheep Again Roaming Great Western Divide In Sequoia, Kings Canyon National Parks
It took the help of a helicopter, but Sierra Nevada bighorn sheep are once again roaming the Great Western Divide that forms part of the border between Kings Canyon and Sequoia national parks.
At Isle Royale National Park, where the island's wolf population has been in slow decay for years, park officials have announced plans to take a thorough look at options for preserving wolves on the landscape.
How healthy is Yellowstone National Park's moose population? That's a question a husband-and-wife team from Vermont hopes to answer over the course of a three-year study into the animals.
The bison management plan that governs how Yellowstone National Park bison are managed when they leave the park could be revised under a proposal Park Service and Montana officials are exploring.
Incubating eggs in the harsh coastal expanses of Kenai Fjords National Park and Preserve in Alaska is tough business to start with, and with predators on the prowl, it becomes even more difficult to rear a brood.
Not too many years ago there was a study that identified the type of vehicles Yosemite National Park's bears liked to break into for a meal. Now a new study says improved efforts to keep bears away from human foods has been a tremendous success in the park.
Three bison were shot and killed inside Yellowstone National Park within the last week, leading park officials Tuesday to ask the public for help in finding the person or persons responsible.
A female wolf that crossed from Isle Royale National Park to Grand Portage National Monument via an ice bridge across Lake Superior was killed by a pellet gun wound, according to veterinarians.
What looks like a crocodile and moves like a crocodile, but doesn't belong in Everglades National Park?
The annual reduction of bison from Yellowstone National Park has ended, with an estimated 600 of the iconic animals removed from the park's herds via hunting or culling.
The National Park Service, responding to the state of Alaska's liberalized hunting seasons for predators, is proposing to shorten the hunting seasons in some of its units in the state.
Spring can't be far off, as grizzly bears are starting to stir in the greater Yellowstone ecosystem, a development that hikers, skiers, and snowshoers should take note of.
Mammoth Cave National Park officials say bats infected with a deadly disease have been found in sections of the cave open to public tours.
Desert Bighorn sheep just might be the wildlife attraction at Zion National Park in southwestern Utah. And while the herd has grown quite a bit in recent years, park officials want to get a better grip on managing the animals.
Anyone with Internet access will be able to follow two osprey as they nest in and around Rocky Mountain National Park thanks to a cooperative program designed to follow the birds from their breeding grounds to their wintering grounds.
California's 101 Freeway is turning into a killing zone for mountain lions, as three kittens have been killed by traffic on the highway in recent weeks, according to Santa Monica Mountains National Recreation Area officials.
The need to prevent national park units from turning into biological islands, cut off from other wild lands by development, is not a new worry. But a recent study reinforces the value of ensuring migrational corridors survive.
An elephant that attacked a vehicle in Kruger National Park in South Africa late last month was put down because it posed a risk to other park visitors, park officials said.
Around The Parks: Ice Bridges At Isle Royale, Sea Turtle Record At Dry Tortugas, Scotty's Castle Delays
Watching Lake Superior ice at Isle Royale National Park, counting sea turtles at Dry Tortugas National Park, and road work woes for Scotty's Castle visitors at Death Valley National Park are just some of the other stories around the National Park System this week.
Inbreeding, long seen as a problem with the Florida panther population in Big Cypress National Preserve in Florida, is evoling into more of a problem with mountain lions in Santa Monica Mountains National Recreation Area in California.
Christmas is past, but counting birds is not. At Death Valley National Park, the annual Christmas Bird Count is scheduled for this coming Saturday.
It's been a century since bison were returned to Wind Cave National Park via a recovery program for the shaggy animals, and while they're thriving, overall, in the park, motorists are proving to be a great threat to them.