Phylliroe is a type of nudibranch, or sea slug, that has evolved to look and swim like a fish. And that's not the only weird thing about it.

A humpback whale fell victim to a swarm of sharks, which are usually known to hunt much smaller prey.

Who or what is making the sound remains a mystery, but it may be a 'dinner bell' signaling feeding time for deep sea creatures.

Video could finally offer insight into the mysteries about how sharks get their shuteye.

Video settles who is truly atop the ocean food chain.

Helicopter-like aerial drones will patrol off the coast of popular Australian beaches.

This unexpected clash of alligators and sharks demonstrates which animal really sits atop the estuarine food chain.

German Christmas markets or Christkindlmarkt celebrate the holiday season with crafts, food and fun.

These fresh food marketplaces are a cultural connecting point that sell live and dead animals, but they have been linked to increased risk of disease.

Monster-like creatures live thousands of feet below the surface, and they've adapted to hostile environments by taking on cool — and scary — physical traits.

In the 1930s, the National Park Service created master plans for each U.S. national park that showed and explained the vision for development of each park.

The International Dark-Sky Association bestows the honor on national parks and monuments that limit light pollution to preserve the night sky.

Human beings are obsessed with shiny things, and the attraction is innately tied with one of our most basic human needs.

Top 5 green South Park episodes. When it comes to environmental satire, no show makes us laugh harder.

It will take two men six months to digitally document the largest urban park system in America.

Scientists find a tiny pocket shark that glows in the dark in the Gulf of Mexico.

･ Top share with 37.2% of the global market, fifth time since 2014 ･ Contributing to a significant reduction in air pollutants, and improvement in the global environment

Built atop a parking garage, this iconic park is considered the world's largest rooftop garden. It's also the place for kids and curious adults to go.

The headline attraction at Edisto Beach State Park near Charleston, S.C., is 1.5 miles of palmetto-lined beach pristine enough to be the nesting grounds of enda

Some urban parks are a spot of green in a landscape of gray concrete and steel, the only spot for blocks and blocks with trees and grass. Atlanta has lots of tr

The stone observation tower atop Mount Constitution – at 2,409 feet, the highest point among Washington’s San Juan Islands – offers panoramic views of gre

You don’t have to go to the boondocks to go hiking or horseback riding in deep woods teeming with deer, raccoons and even coyotes. You can do that in Rock Cre

Arches National Park near Moab, Utah, may be the world’s largest sculpture garden — a place where Mother Nature has used wind and water to carve more than 2

City leaders paid a mere $2,000 for land that was originally supposed to be a graveyard. Luckily for Seattle residents, plans changed, and the park now boasts p

The Grand Canyon of Texas is more accessible than its famous Arizona cousin — with trails for hikers, bikers and horseback riding.

The mysterious, ancient caves are the star attraction of this Kentucky park, but 70 miles of above-ground hiking trails and 30 miles of paddling opportunities w

Theodore Wirth Park in Minnesota goes beyond the usual amenities with a 15-acre garden and bird sanctuary, mountain biking trails and even a snow-tubing trail w

With 70 miles of hiking trails, you've got options at Portland's Forest Park. Why not catch a glimpse of Mount St. Helens or Mount Rainier?

Cuyahoga Valley National Park — a swath of green river valley stretching from Akron north to the southern edge of Cleveland — is Ohio’s only national park

With a mix of soaring granite peaks, lush alpine meadows, high country lakes and waterfalls, Rocky Mountain National Park is a park straight out of central cast

New York City's biggest park is in the Bronx — and Pelham Bay Park boasts a beach, salt marshes and even an equestrian center.

The jaw-dropping red rock country in Arizona has no shortage of open space. Red Rock State Park south of Sedona — a tourist town with equal number fudge shops

Kenai Fjords National Park in Alaska is three fingers of Mother Nature poured over ice. A place where glaciers creep to the sea and the Harding Icefield, which

The therapeutic qualities of these springs have drawn visitors for more than 200 years — and the history and architecture of this Arkansas hot spot provide ev

This a place where all the superlatives apply — from the mountain views to the colors in the landscape ... oh, and don't forget the grizzly bears.

The space might not be conventional, but there's room to do almost everything — bike, walk, fish or paddle — in this strip along the river.

You can stay on dry land or take in the wonders of this marsh and mangrove mystery-land via canoe. Either way, be prepared to see a lot of wildlife.

There's no better place than Washington, D.C., to celebrate America's achievements and sacrifices. From presidents to war heroes to a civil rights icon, it offe

The nation’s sandbox is found in southern Colorado. The heart of Great Sand Dunes National Park and Preserve is a dune field that spreads out for nearly 30 sq

Zion National Park in southern Utah isn’t on as many “bucket lists” as it should be.

This New Mexico treasure has been described as 'the Grand Canyon with a roof on it.' But don't take Will Rogers' word for it — see it for yourself.

The most notable structure in Nashville's green playground is the Parthenon, a replica of the ancient temple made of modern materials.

A trip to Channel Islands National Park is a trip back in time — Southern California before freeways. The park protects five islands and the surrounding water

This Maryland park houses Camp David, the famous presidential retreat, but you're more likely to see whitetail deer and black bears than a president.

This New Hampshire gem is a four-season recreational hub with hiking in the summer and snow skiing in the winter. (Bonus: It's easy to get to, thanks to access

Measuring well over 5,000 square miles, Death Valley National Park is the largest national park in the Lower 48. Of course, most people know it for its other su

Sitting on the rain-soak Olympic Peninsula in northwest Washington, Olympic National Park is perhaps most known for its expansive temperate rain forest. However

There's a reason why more than 4 million people visit this Wyoming wonder annually. (Don't worry: there's enough nature for everyone to enjoy at this neighbor t

This famous urban greenspace is where the locals go to shrug off big city living and where the tourists go to see what all the fuss is about.

Mount Mitchell State Park, about 35 miles northeast of Asheville, North Carolina, is a place of superlatives. The namesake peak is the tallest east of the Missi