wunder betaOcean & Marine Life Classes for Teens
9 free ocean & marine life classes for teens (Ages 13–17) on Wunder — short, fact-checked courses and lessons with narration and a quiz. Filter by age — each link is its own page, not a JavaScript toggle.
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Ocean Food Chains and Predator Loss
Discover why removing top ocean predators like sharks can ripple down entire food webs in a trophic cascade.
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Deep-Sea Life Without Sunlight
Journey to hydrothermal vents, where whole ecosystems thrive in total darkness using chemical energy instead of sunlight.
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Coral Bleaching and Ocean Acidification
Understand why warming and CO₂ stress coral reefs, and the science-backed efforts giving reefs a fighting chance.
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Biodiversity and Ecosystem Health
From coral reefs to kelp forests, discover why the variety of life keeps ecosystems stable, what services it gives us for free, and what threatens it.
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The Biodiversity Crisis
Earth's living variety is shrinking faster than ever. Understand what the biodiversity crisis is, the human forces driving it, and the real solutions helping to turn the tide.
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Life in Earth's Extremes
From boiling hot springs to the frozen deep sea, life finds a way. Meet the extremophiles — tardigrades, heat-loving microbes, and vent creatures — that thrive where nothing should survive.
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Moons of the Solar System
Volcanoes on Io, hidden oceans on Europa and Enceladus, methane lakes on Titan — a tour of the strange, active, and maybe-habitable moons circling our Solar System.
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Oceanography
Explore Earth's largest habitat: its zones, currents, and hidden deep sea.
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World Geography
Continents, oceans, rivers, and why every flat map bends the truth.
All Ocean & Marine Life courses (topic hub)
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