Environment

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Selective cutting and replanting of trees are practices that can help ensure that a forest can sustain its economic yields and ecological integrity for the years to come.

Sustained Yield Use In Forestry And Natural Resource Management

Sustained yield use allows people to obtain benefits from forests and other reserves of natural resources without undermining their ecological integrity.

April 25, 2017 12:31

The presence of large amounts of loess, such as here in the Palouse Region of the U.S. state of Washington, allows for high levels of agricultural output.

Loess Soil And Ground Fertility

This wind-blown sediment is responsible in part for some of the world's most agriculturally productive areas.

April 25, 2017 12:31

A U.S. Army helicopter destroying Vietnamese croplands by way of Agent Orange application from above during the Vietnam War.

What Are Defoliants Used For?

Defoliants are chemicals applied to plants that cause their leaves (foliage) to fall off.

April 25, 2017 12:31

A Saltwater Crocodile along the water's edge in Queensland, Australia, one of the further south regions of the species' habitat range.

The Heaviest Living Reptiles In The World

The Saltwater Crocodile Is The Largest Living Reptile On Earth Followed Closely By The Nile And Orinoco Crocodile.

April 25, 2017 12:31

Sunset At The Siachen Glacier, The Second Longest Non-Polar Glacier In The World.

The Longest Non-Polar Glaciers In The World

Tajikistan is home to the longest non-polar glacier in the world, the 77-kilometer long Fedchenko Glacier.

April 25, 2017 12:31

The African Elephant Is The Heaviest Terrestrial Animal In The World Today And Is An Endangered Species Due To Extensive Poaching And Habitat Destruction By Humans.

Heaviest Land Animals Alive Today

While whales may dominate the list of largest aquatic animals, these terrestrial species can really make the ground rumble.

April 25, 2017 12:31

The US State of Maine Shares Its Borders With The US State of New Hampshire and The Canadian Provinces Of Quebec And New Brunswick.

Which U.S. State Borders Only One Other State?

Maine only borders 1 other U.S. state (New Hampshire), while bordering 2 Canadian Provinces (New Brunswick and Quebec).

April 25, 2017 12:31

The Summit Caldera Of Mauna Loa, An Active Shield Volcano In Hawaii, US, Is The Only Volcano On Earth Featuring On The List.

The Solar System's Tallest Mountains

Curiously, only one mountain on Earth, Mauna Loa in Hawaii, is tall enough from base to peak to be featured on this list. Read to learn why even Everest fails the test!

April 25, 2017 12:31

A Baird's Tapir, the National Animal of Belize.

National Animals Of South And Central America

From Central American jungles to the Amazon to Patagonia to Tierra del Fuego, these countries have no shortage of choices of fauna to serve as national symbols.

April 25, 2017 12:31

Weighing as much as 60 cars, the Blue Whale, here shown photographed from above, is the most massive animal on Earth.

The Heaviest Living Animals In The Oceans

All Of The World's Heaviest Animals Are Cetaceans, With The Blue Whale Being The Largest Living Animal On Earth.

April 25, 2017 12:31

A cargo ship passes through updated locks along the modern-day Panama Canal.

The Panama Canal

The Panama Canal is one of the most significant canals in the world, effectively connecting Atlantic and Pacific trade routes with far-reaching economic implications.

April 25, 2017 12:31