Taricha torosa travel up to three miles in order to reproduce, an impressive feat for something only six inches long. The video explains their mating rituals, which many consider rough and forceful. With a little cannibalism after...

Hummingbirds consume their weight in nectar every day. The video explains their unusual flying abilities. From holding their bodies perfectly still while flapping their wings in mid air in order to get the nectar to shaking off water...

Even the smallest living things have a large impact. An informative video lesson presents an introduction to types of plankton and their roles in the ocean. The narrator explains how plankton impacts the ocean ecosystem and beyond.

Things are not always as they appear. The morpho butterfly appears to have blue wings, but they don't contain a drop of blue pigment. Learners watch as the instructor explains the physics behind these amazing blue wings.

It turns out some wasps have a lot of gall! An engaging video lesson presents parasitism at its finest. Certain species of wasps trick oak trees into creating and maintaining homes for their larva. These homes have the appropriate name...

I'll scratch your back, if you'll scratch mine—unless someone else comes along that is a better scratcher! Examine the fickle nature of rainforest insects using a captivating video. The narrator describes the mutualistic relationship...

Like tiny Supermen of the sea, mantis shrimp catch their prey using both bullet-like speed and enhanced vision. How do they do it? Young marine biologists discover the amazing adaptations found in the mantis shrimp and how they use them...

An octopus' tentacles are more like sticky, multipurpose tools than the simple leg-like appendages we view them as. Discover their amazing abilities, times eight, in an entertaining video. The narrator explains the senses located in each...

You may have heard that, if you've had chicken pox, the shingles virus is already inside you. The bad news? It may not be alone! Introduce your microbiology class to some of the trickiest pathogens we know of in the 151st video in an...

What causes bug bites and other irritants to itch? Science scholars discover the body chemistry responsible for itching in the 130th video in a 143-part series. Topics include conditions that cause itching, the neurotransmitter...

Moles, grams, particles, volume ... how do I keep them all straight? Help pupils sort out the terms and calculations used in stoichiometry with a video tutorial. Topics include mole ratios, molar mass, molar volume, and common...

Everyone knows that termites are bad news for the wooden parts of a home. How do they do it, and how can we stop them? Go inside a termite (literally) to discover the scores of bacteria and protists that help make wood taste good. The...

Roly polies or pill bugs? No matter what you call them, these organisms are unique. Biology scholars discover a true evolutionary success story in a video about tiny, land-dwelling crustaceans. The narrator describes their journey from...

In many cultures, spitting is considered rude; in the world of the archerfish, spitting just means you're trying to catch dinner! Journey to the mangroves of Southeast Asia to meet the archerfish, an expert marksman that shoots insects...

Birds do it, bees do it ... and snails do their own strange form of it. Discover the awkward encounter between hermaphrodite snails that ultimately results in sexual reproduction. The narrator of the short video explains the purpose for...

What can fighting fruit flies tell us about our own brains? Junior geneticists explore the common genes of fruit flies and humans and learn how scientists are using the tiny insects to help study depression, anger, and Alzheimer's...

Get ready to take the plunge! Science scholars go fishing with a brown pelican and see how it can withstand the impact of the water from a height of 40 feet. The narrator shows the birds in action and describes the physical adaptations...

New York, Paris, Milan ... and now, high fashion in a California tide pool! Junior zoologists explore the world of the decorator crab and learn about its amazing camouflage. Also featured is the moss crab, which incorporates anemone into...

What happens when you plant large numbers of non-native trees in an area? Well, sometimes it attracts the wrong kind of attention! Meet the South American palm weevil, an insect that spends its entire life cycle destroying palm...

What would it be like if your only goal in life was eating? See the world from a caterpillar's point of view in an interesting video. Science scholars learn about the life cycle of a butterfly, as well as the distinct functions performed...

The North Star changes — it was previously Thuban but now is Polaris, and in the future, it will be Vega. The video discusses the cycles observed in the sky with only your eyes. It focuses on the zodiac constellations and why they are...

Perfect cloning is impossible — and that's been proven mathematically. Investigate the complexity of cloning in physics. The video instructor explains why cloning is theoretically impossible. He uses several examples to illustrate...

Have you built your home on the slopes of Mount Vesuvius? Why not? Friedrich Nietzsche challenges viewers to live a fulfilled and dangerous life, to use the humanities as a guide to life, and to own up to one's envy, as explained in...

A large amount of ice exists on the moon making colonization that much easier. The video discusses the creation of the moon and the materials and features on it. It also discusses the reasoning behind our moon being just one of...