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When wolves were reintroduced to Yellowstone National Park in the United States after being absent nearly 70 years, the most remarkable “trophic cascade” occurred. What is a trophic cascade and how exactly do wolves change rivers? George Monbiot explains in this movie remix by Sustainable Man.

I dare say, this is the smallest tablet ever! I want one now… I mean, I need it! Hurry up!

I know spiders is a tough subject, some people love them but most of us, yes, I’m one of those, are very afraid of them. That’s why I wanted to present to you this video today, because, at least, for once, a spider made me crack up…. This is so funny! Can somebody explain what this spider is doing? :)

AuDi Yu was at the Taipei zoo with his daughter when they witnessed this… A giant tortoise had turned over and could not get back up… so, its friend came to the rescue! That tortoise is my hero!!! :-)

When he sees a child fall off of a skateboard, this construction worker helps the child back on his feet. This one moment of goodwill sets off a chain reactions of random acts of kindness toward strangers in this touching fan-created music video for Matisyahu's "One Day". Matisyahu is a reggae musician, from New York, most known for his multi-cultural music style. He blends reggae and rap sen

Because of their large size, elephants have a huge impact on their environments and are considered keystone species. Their habit of uprooting trees and undergrowth can transform savannah into grasslands; when they dig for water during drought, they create waterholes that can be used by other animals. They can enlarge waterholes when they bathe and wallow in them. At Mount Elgon, elephants excava

Cinnamon is an aromatic spice that comes from several different trees and is commonly used in various foods and drinks. It is popular in a number of dessert items, such as doughnuts, cakes, and let's not forget cinnamon buns. It is also commonly used in tea, coffee, hot cocoa, and apple cider. Cinnamon is not only a great way to flavor foods, but it is also regarded for its many health benefi

Cameron Nimmo and Mickey Smith set off from Jupiter, Florida to cuddle some sharks. Check out more: https://www.youtube.com/user/Murfdizz21

This adorable puppy may be the most chilled canine on the planet as he blissfully settles into bath time. The two-week-old was close to death when he was found abandoned in a dumpster with his two sisters– but now it looks like his troubles are a million miles away. They were found by Dallas Animal Service and referred to the DFW Rescue Me animal shelter where volunteer Claire Fowler was taske