Can an organism with no eyes still see? As it turns out for the purple sea urchin, the answer is yes. In a short video, scientists explain why they believe that some sea urchins can use their spikes to visually sense the environment. 

The award for the most effective adaptation goes to the mimic octopus, a newly described species. The octopus can change its color, shape, and behavior to mimic flounder, lion fish, sea snakes, and more. 

How did the stickleback fish, which was once ocean bound, evolve to be able to persist in freshwater lakes? Hear from the scientists who identified the genes and related switches that allowed these survivors to adapt. In addition to the...

Isn't it strange that Earth's largest animal lives on one of its tiniest? Using Sesame-Street-style puppetry, this video explains how this phenomenon happens. Viewers learn that a single mouthful of krill taken in by a whale has the...

Part two of this entertaining series looks at Darwin's visit to the Galapagos, his return home, and his determination to support his theories with evidence. What fun!

A wonderfully humorous and irreverent take on the early life of Charles Darwin tracing his struggles at school to his arrival at the Galapagos. Part one of the three-part Greatest Scientists series narrated by Dr. Allan Chapman.

It's Mr. Anderson, and he's ready to explain natural selection! Be excited, because he has the ability to make scientific biology and genetic functions in terms of natural selection make sense. With great examples and a clear and gentle...

Take a look at the coldest, windiest, and driest place on earth: the arctic! Very few species exist here, and those that do have undergone several adaptations to ensure their survival. Learn about some of these unique animals and their...

Your upper graders will have no problem understanding the Theory of Evolution after watching this comprehensive clip. Multiple examples are used to demonstrate how a species is able to adapt and change over time due to both environmental...

Plants have unique ways of adapting to droughts. Show your class this video to highlight some of the many adaptations desert plants have adopted over time.

Three thousand plant species light up Africa's Karoo Desert for merely two weeks of the year. Compare and contrast the Karoo geography with that of the Sahara to highlight the difference just a few extra centimeters of rain can have on a...

Can you imagine the desert floor being covered by bright, vibrant flowers? Watch the desert plants transform from dry and crisp to dazzling and colorful in this video. Use as an introduction to desert pollination or to present the...

Did you know that the saguaro cactus can live for up to 200 hundred years? Learn more about this specialized cactus by showing this short, informational video clip set in the Sonoran Desert, the only desert where saguaros can live!

Take a peek at one of the harshest ecosystems in the world. Can you guess where it is? It's actually in Wyoming at the base of the Bighorn Mountains! Adapting to this harsh environment has been difficult, and only a few species are able...

Follow the Damara mole rat underground as he excavates the wet sands of the Kalahari Desert. What does he eat? How does he survive in the harsh conditions of the desert? Find out with this informative video.

Emperor penguins keep warm at sub-zero Arctic temperatures. How do they do it? Think of the energy generated during a sporting event wave of the crowd, and you will be getting warmer! This short clip shows that tiny, wave-like movement...

Dandelion and maple tree seeds are blown and thrown to show two methods of seed dispersal. The narrator videotapes from his vantage point, his hands visible, but never his face. He examines helicopter blades as a human imitation of...

The toughest animal on Earth is also one of the smallest creatures on Earth. Watch a video about the tardigrade and its ability to withstand many stressors, including lack of water and freezing temperatures.

Filmed like a teaser trailer for a dramatic movie, this clip showcases the adaptations of pollination and bees. Lady Bee flies from flower to flower while intermittent descriptions of her actions are highlighted. This is very cute.

Witness the spectacular imagery of tropical grasslands in this non-narrated video. Read some facts pertaining to this biome in the first minute, and then enjoy a brief glimpse of the wildlife native to the tropical grasslands.

Did you know there's a desert tree that can perform self-amputation to reduce the amount of water it needs? Use this video clip to introduce your class to the ways different plants adapt to a hard desert environment.

Deciduous forests can be found in almost all corners of the world, ranging from the United States to Russia to New Zealand. While this video has slightly choppy editing, it covers the types of animals, trees, and fungi that live in the...

Soar through the mountain biome with the Andean condor, and slink along the rugged mountain terrain with the snow leopard. This is a tough environment to survive in, and this video highlights some of the hunting patterns of various...

Drew sneaks up on various animals to show their different behaviors. He discusses the fact that behavioral adaptations evolved over time, just like physical adaptations. Unfortunately the shade of the trees in the first part of the video...