Evolution

Virtual Field Trip Video: China's Great Forests | Nature Works Everywhere

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Join our expert scientist Yue Wang, a conservation planning officer for The Nature Conservancy, on a virtual field trip across the world to two stunning provinces in China—Sichuan and Yunnan—where we will explore majestic forests, towering mountains, and other iconic landscapes. While examining the role these vital natural areas play in the carbon cycle and climate change, as well as the benefits of reforestation, we will learn about the magnificent creatures who call these habitats home: giant pandas, golden snub-nosed monkeys, and the elusive and odd-looking takin. 

Find a teacher's guide here to accompany this field trip.

Why Are the Bees Dying? | It's Okay to Be Smart

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Bees, wild and domesticated, are in big trouble. Bee colonies are dying off at alarming rates, and the cause isn't clear. Pesticides, habitat loss, disease… there's a laundry list of likely culprits. We rely on these tiny pollinators for a majority of our fruits, veggies, and nuts… if they disappear, could we be next?

Revealing the Origins of Life

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This video segment adapted from NOVA scienceNOW examines how a team of chemists led by Dr. John Sutherland at the University of Manchester discovered a way in which parts of the first RNA molecules could have formed in the primordial soup of early Earth and given rise to life. DNA and RNA are complex molecules that make possible the inheritance of genetic information, an essential component of life. Dr. Sutherland's discovery of a series of inorganic reactions—that used simple chemicals available on early Earth and would proceed naturally under the environmental conditions at the time—solved the long-standing question of how complex molecules such as DNA and RNA could have first formed nonbiologically.

This video is available in both English and Spanish audio, along with corresponding closed captions.

This Video Is Just for You | BrainCraft

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Persuasive and personalized messages are around all of us. Find out how they influence our response, and what happens in the brain when they do.

Body Waste that Protects You | Science Trek

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This video segment from IdahoPTV's Science Trek explores the different kinds of body waste that protect the body: earwax, mucus, tears, sweat, and vomit.

Koala Balloon | Wild Kratts

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Join Chris and Martin as they learn about some of the amazing features and abilities of animals that are specialized to their environments. In this full episode with accompanying clips, Martin and Chris must protect a young koala stranded in the Australian Outback, and help him get back to his Eucalyptus forest habitat. On their quest to return the adorable animal home, the brothers discover lots of interesting facts about how animals are specialized to their own environment. With some tips from an intrepid desert dweller called the thorny devil, they must survive the desert crossing and bring the koala home.

Beauty and the Bees

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Consider that humans and bees are attracted to the same shapes, patterns of color and scents in flowers.  Learn how plants have evolved to attract both humans and bees.

Bird Migration | Science Trek

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This video segment from IdahoPTV's Science Trek explains why birds migrate south for the winter and the benefits of migrating back north in the Spring for the nesting season. Follow scientists and students as they catch, band and release birds at the Idaho Bird Observatory during their migration.

Polar Bears Don’t Dance

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Join the Kratt brothers in the arctic as they explore the rulers of the land and of the water, the polar bear and the walrus! Viewers learn all about their physical characteristics that allow both the polar bear and the walrus to be successful on the land and in the water respectively and that when they cross paths, there is trouble! The Kratt brothers explain that polar bears have extra traction on the bottom of their paws, as well as very sharp claws to help them stay in control on the ice and that polar bears have flippers to help them swim fast and steer in the water!

Dinosaur Train | Play Dino Ball YOUR Way

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In this Dinosaur Train clip, Mr. Pteranodon and the kids go to a Dinoball game to see Mr. Pteranodon's hero, Hank Ankylosaurus, play. Afterward, they get to play with Hank and they learn that Ankylosauruses are covered with armored plates for protection from predators, and have clubbed tails for self-defense.

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