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"mammal"
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Lesson Plan
Haunted by Hurricanes
Hurricanes are powerful storms that can cause devastating damage when they hit the...
Tue, 07/10/2018 - 14:03

Lesson Plan
Hot, Cold, Fresh, Salty
An observer on the seashore may make the mistake of thinking that all ocean...
Tue, 07/10/2018 - 13:39

Lesson Plan
Who Moved the Beach?
Coastal erosion is a natural process that sweeps large sections of land out to sea....
Tue, 07/10/2018 - 13:22

Lesson Plan
The Moon Made Me Do It!
Much like rising and setting sun has an impact on life on Earth, the cycle of the...
Tue, 07/10/2018 - 13:03

Lesson Plan
Ups and Downs
The rise and fall of the ocean tides is a predictable phenomenon influenced by the...
Tue, 07/10/2018 - 12:51

slideshow
Backbone of Biodiversity at Risk
The International Union for the Conservation of Nature (IUCN) maintains the...
Thu, 10/28/2010 - 19:01

slideshow
Weird, Wacky, Wonderful Sharks
Saw sharks and frilled sharks and ghost sharks, oh my! All sharks are pretty wild...
Fri, 07/21/2017 - 10:57

slideshow
Image Gallery: Swimming with Sharks
For nearly 30 years, National Geographic photojournalist Brian Skerry has been...
Thu, 09/29/2011 - 14:03

slideshow
Spectacular Shark Pictures
Sharks are one of nature’s most beautiful—and misunderstood—creatures. When...
Wed, 06/26/2013 - 12:53