Salps are more than just strange balls of goo drifting through the sea—in fact, they’re more closely related to us than they are to jellyfish, and play a huge role in marine ecosystems and the global carbon cycle as the “vacuum cleaners...

Several cultures portray the world as being carried on the back of a giant turtle. As it turns out, sea turtles really do house an entire world on their backs — one of microscopic organisms, that is!

Why can amphibians, fish and even some reptiles regenerate limbs, while birds and mammals can’t? Researchers think they might have found a clue on the tip of the alligator’s tail.

From the ability to see “invisible” types of light to the power to taste all over their body, meet five incredible animals whose super senses far surpass our own! Chapters STAR-NOSED MOLES 3:04 HARBOR SEALS 4:56 CATFISH 6:49 BEARS 8:26

Even if you’re tiny, you can still be fierce. Here are 8 little invertebrates who punch above their weight class at dinner time. CHAPTERS View all DRAGONFLIES 0:46 REGAL JUMPING SPIDER 1:43 EPOMIS BEETLES 2:49 PRAYING MANTIS 4:34 BOBBIT...

Humans often take inspiration from nature when coming up with inventions, and this includes breakthroughs in fabric design that help to forward the fabulous and functional world of fashion.

There are many creatures on the internet that do not actually exist, even though we would like them to. Like, would you believe there is an animal that can photosynthesize, decapitate itself, and is incredibly cute? They are the...

Tadpole shrimp are neither tadpoles, nor shrimp. They are a little, ancient type of crustacean that swims in water in the driest places on earth.

Sea spiders are not actually arachnids, although they certainly look the part. They’re weird guys, and the specifics of their strangeness may actually help us to better understand how all invertebrate groups evolved.<br/>

The fusion of two sex cells to create a new organism.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...

Another word for fertilisation - when two sex cells combine to create a new organism.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Invertebrates are animals without a backbone – but that’s the only thing they all have in common! Learn more about some of the many different types of invertebrate, from arthropods to sponges. Biology - Animal Kingdom - Learning Points....

Meet the robber crab: the largest land invertebrate in the world. Biology - Animal Kingdom - Learning Points. The robber crab is the largest terrestrial invertebrate in the world. Adult robber crabs measure up to 1 metre and weigh up to...

An animal without a backbone or spinal column. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts...

An octopus can behave in extraordinary ways to avoid being eaten.
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Living things - Animal kingdom - Gr
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Learning Points
All animals are either vertebrates with a backbone...

What is it? ... These are snakes!
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Life processes - Variation and classification - Class
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fication keys


A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what...

Take a high-speed look at the remarkable sunflower starfish.
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Life processes - Variation and classification -


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Learning Point
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Starfish are invertebrates.


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Find out why your skeleton is one of your most important organs.
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Life processes - Body systems - The
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Learning Points
The skel
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Jessi shares some of her favorite creepy crawly critters for Halloween. Just because they're creepy doesn't mean they aren't amazing!

We now arrive at the most famous of the mollusks, the cephalopods. These include squids, nautiluses, cuttlefish, and the fascinating octopuses. These creatures are the largest and most intelligent invertebrates on Earth. Let's learn all...

During the COVID-19 pandemic before the Montana stay-at-home order, Brit sent Adrian on an outside scavenger hunt to appreciate the simpler things in life. Huge thank you to Tamar Ziri and Nevin Graves for being part of the Nature League...

This live action video show is about the word vertebrate. The program is designed to reinforce and support the student's understanding and retention of the word vertebrate through the use of videos, photographs, diagrams and graphs, and...

In this De-Natured segment of Nature League, Brit breaks down a recent scientific journal article about the impact of invertebrate motion on the mixing of water columns. Article citation: Isabel A. Houghton, Jeffrey R. Koseff, Stephen G....

This live-action video program is about the word mammal. The program is designed to reinforce and support a student's comprehension and retention of the word mammal through use of video footage, photographs, diagrams and colorful,...