Why do scientists try to learn about /people/ by studying creatures that none of us could ever be mistaken for? Learn about model organisms, and why they're so helpful for us.

You might have noticed that sea urchins sometimes make some interesting fashion choices, covering themselves with all sorts of odds and ends, and it turns out they have a lot of different reasons for doing this.

Fish are smarter than you think! Scientists have explored triggerfish's ability to learn some clever hunting tactics.

Paul Andersen explains the importance of biodiversity. He starts by describing how biodiversity can be species, genetic or ecosystem diversity. He explains the importance of keystone species in an environment and gives two examples;...

Hidden beneath the surface of our coastal seas are towering forests - of kelp. These underwater ecosystems are as crucial to our environment as their land-based counterparts. We explore them alongside conservationists working to restore...

To finish things up with Echinodermata, we will look at class Echinoidea, the sea urchins, and class Holothuroidea, the sea cucumbers. What are these spiny things we call urchins? What is their anatomy like? What the heck is a sea...

With the hemichordates covered let's check out the echinoderms. Echinodermata is the other phylum in the clade Ambulacraria, and they are found all around the world. The most familiar organisms in this clade are starfish or sea stars,...

The vital role of sea otters in maintaining a food web.
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Learning Points
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at both plants and other...

On this episode of Beyond the Tide, Coyote and the crew go tide pooling off the coast of Hawaii’s most majestic island, Kauai! The Hawaiian Islands, a well known divers paradise, boast some of the most amazing collections of marine life...

This video explores five fun facts about hedgehogs.

This video is answering the question of how did hedgehogs get their name.