Most of the time, it’s not great when an expensive spacecraft slams into an extraterrestrial body. But now and then mission control intentionally crashes a spacecraft for science!

Four-star general Stanley McChrystal shares what he learned about leadership over his decades in the military. How can you build a sense of shared purpose among people of many ages and skill sets? By listening and learning -- and...

Season 3, Dingoes part 4

Dingo poo contains a lot of information about the health and lifestyle of the animals. Meet a wildlife expert and learn how he studies and cares for dingoes on the is

land.

Bushwhacked! is a...

Season 3, Croc Island Rangers part 6

Kayne completes his tasks as the 36 hours run out. Now, it will be up to the elders to decide if his work warrants the title of Honorary Crocodile Island Ra

nger.

Bushwhacked! is a...

Season 3, Croc Island Rangers part 1

On this mission, Kayne will have 36 hours to complete a series of challenging tasks to earn the title of Honorary Ranger. Along the way, they encounter unique wildlife, eat tasty Bush Tucker,...

Season 3, Croc Island Rangers part 4

Kayne continues his mission to become a Croc Island Ranger by spending the night counting turtle eggs and releasing hatchlings into the sea. Through these experiences, Kayne learns about the...

Season 3, Croc Island Rangers part 3

A Crocodile Island Ranger shows Kayne and Kamil a spider and explains what makes this type of spider unique, then they plan to send it to a museum for identification. Kayne surprised to learn...

On this episode of Nature League, Brit talks with the team behind the new film "Tigre Gente", a documentary about the illegal jaguar trade in South America and Asia.

This video explains how to evaluate functions written in function notation by substituting specific domain values. It discusses the concept of relations and functions and show examples of determining if a relation is a function or not....

Hi, Neighbor! Ranger Michael welcomes you to your National Park Service neighborhood, and encourages you to visit your neighbors during the National Park Service Centennial in 2016.<b<br/>r/>

CREDIT: NPS

Lesson 1 of 3. Banana Slugs.<b<br/>r/>

CREDIT: NPS

Ranger Carey (aka "Banana Slug Queen") shares some of the more fascinating characteristics of her favorite animal in the parks—the often-maligned and under-appreciated banana slug (Ariolimax columbianus).<b<br/>r/>

CREDIT: NPS

Ranger Shaina discuss the largest land mammals in the parks (and largest subspecies of North American elk), Roosevelt elk. Lean about elk reproductive behavior, where to see 'em, and how to observe safely.<b<br/>r/>

CREDIT: NPS

Ranger Jaclynn reveals the slow-motion battle of survival that's occurring on Redwood's beaches.<b<br/>r/>

CREDIT: NPS

A park can be a place, a passion or a state of mind. People all around America are finding their park every day. So get up. Get out...<b<br/>r/>

CREDIT: NPS

Informational video about the diversity of habitats accessible from the Main Park Road.

Master Solving word problems using the law of sines and angle relationships

Ranger Liam explains why fog is critical to redwoods' survival during summer, and how changing fog patterns could affect redwood forests of the future.<b<br/>r/>

CREDIT: NPS

Park Ranger Shelton Johnson talks with students about how he fell in love with national parks and became a ranger. These students are participating in a week-long program offered by NatureBridge's Yosemite Institute campus. (2:08)

In this Linux tip, learn how to use ranger. It’s a tool that allows you to easily browse files in a terminal window, but in a much different manner than you normally would on the command line.

Short video about Park Ranger Yvette Cano who works at Loop Road Environmental Education Center (3 min. with closed-captions).

It’s an invitation-only trip for the well-traveled hosts to the remote Crocodile Islands located off the coast of North East Arnhem Land – a small speck of sand in the Arafura Sea. But the mission that awaits Kayne is sure to test all...

Distance learning video about geysers.

Park Ranger Shelton Johnson and National Park Service Director Jon Jarvis encourage you to visit one of America's 393 national parks. (2:53) (Scroll down for more videos)