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Nature & World Micro-Courses

Wildlife, geography, ecology, space, weather — explore planet Earth and beyond through the lens of genuine human curiosity.

77 courses in this selection

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The Science & History of Mermaid Sightings
Nature & World 3 lessons

The Science & History of Mermaid Sightings

Are mermaids real? The truth behind the ocean's greatest myth.

Earth's Secret Storms
Nature & World 3 lessons

Earth's Secret Storms

Did you know massive red lightning flashes above regular thunderstorms?

Apex Predators: The World's Largest Feline Hunters
Nature & World 3 lessons

Apex Predators: The World's Largest Feline Hunters

Which massive cat truly rules the wild, and how do they hunt?

The Truth About Free Flight Upgrades
Nature & World 3 lessons

The Truth About Free Flight Upgrades

Can you still sweet-talk your way into First Class?

The Bovine Empire: Earth's Heaviest Mammal
Nature & World 3 lessons

The Bovine Empire: Earth's Heaviest Mammal

Are cows the true biological rulers of planet Earth?

Platypus: Evolution's Remix
Nature & World 7 lessons

Platypus: Evolution's Remix

Did you know that the platypus is one of the only mammals that lays eggs and is venomous?

The Platypus: Nature's Ultimate Mash-Up
Nature & World 5 lessons

The Platypus: Nature's Ultimate Mash-Up

Is the platypus the weirdest and most surprising animal on Earth?

The Emerald Carpet: Master Your Green Lawn
Nature & World 3 lessons

The Emerald Carpet: Master Your Green Lawn

Is your neighbor’s grass actually greener, or do they just know the secret?

The Bizarre Biology of Octopuses
Nature & World 3 lessons

The Bizarre Biology of Octopuses

Why do octopuses have blue blood and three hearts?

The Salty Truth: Why Oceans Sting and Lakes Don't
Nature & World 5 lessons

The Salty Truth: Why Oceans Sting and Lakes Don't

Ever wondered why oceans are salty but lakes are fresh?

The Door to Hell: The Pit That Burns Forever
Nature & World 5 lessons

The Door to Hell: The Pit That Burns Forever

Why has this giant desert crater been burning for over 50 years?

The Age of the Chicken: Humanity's Surprising Legacy
Nature & World 3 lessons

The Age of the Chicken: Humanity's Surprising Legacy

What will future geologists find in our fossil record? It's not what you think.

The Medusa Lake: Secrets of Lake Natron
Nature & World 3 lessons

The Medusa Lake: Secrets of Lake Natron

Is there really a lake that instantly turns animals into stone?

The Butterfly Blueprint: Master Radical Change
Nature & World 7 lessons

The Butterfly Blueprint: Master Radical Change

Did you know butterflies literally turn to liquid before they fly?

Sky Reader: Nature's Weather Radar
Nature & World 5 lessons

Sky Reader: Nature's Weather Radar

What is the sky telling you about the coming rain?

The Ocean's Tug-of-War: Monsoon, El Niño & La Niña
Nature & World 5 lessons

The Ocean's Tug-of-War: Monsoon, El Niño & La Niña

How can ocean water thousands of miles away steal India's rain?

The Zombie-Ant Fungus
Nature & World 5 lessons

The Zombie-Ant Fungus

How does a microscopic fungus turn a living ant into a mindless zombie?

Polar Bear Physics: The White Coat Myth
Nature & World 5 lessons

Polar Bear Physics: The White Coat Myth

Think polar bears are white? You’ve been living a lie. Here is why.

Wild Bermuda: Secrets of the Island
Nature & World 10 lessons

Wild Bermuda: Secrets of the Island

Discover the extinct birds and trapped lizards of Bermuda!

Beasts & Beaks: The Science of Zoology
Nature & World 3 lessons

Beasts & Beaks: The Science of Zoology

Did you know you can study living dinosaurs for a living?

The High-Pressure World of Octopus Hearts
Nature & World 3 lessons

The High-Pressure World of Octopus Hearts

Think having 3 hearts is overkill?

The Mystery of Antarctica's Blood Falls
Nature & World 3 lessons

The Mystery of Antarctica's Blood Falls

Why is a massive Antarctic glacier seemingly oozing a five-story waterfall of blood?

The Bumblebee Paradox: Nature's Flight Secret
Nature & World 3 lessons

The Bumblebee Paradox: Nature's Flight Secret

How do these fuzzy, heavy insects stay in the air?

Balcony Gardening for Beginners
Nature & World 7 lessons

Balcony Gardening for Beginners

Did you know you can grow up to 20kg of tomatoes on a tiny balcony?

Big Cat Battle Royale: Spot the Difference
Nature & World 5 lessons

Big Cat Battle Royale: Spot the Difference

Think you can tell a leopard from a cheetah? Think again.

The Mystery of the Pregnant Pepper
Nature & World 3 lessons

The Mystery of the Pregnant Pepper

Ever found a tiny pepper hiding inside your bell pepper? Discover why it's there.

The Frozen Forest: How Pines Fight Ice Storms
Nature & World 3 lessons

The Frozen Forest: How Pines Fight Ice Storms

Can a pine tree survive fifty times its own weight in ice?

Skyward Swimmers: The Mechanics of Flying Fish
Nature & World 3 lessons

Skyward Swimmers: The Mechanics of Flying Fish

How can a fish leave the ocean and soar through the sky?

Earth's Secret Storms: Deep Dive
Nature & World 3 lessons

Earth's Secret Storms: Deep Dive

What happens when the solid earth and upper atmosphere brew their own secret storms?

Conquering Rome in a Day with Kids
Nature & World 5 lessons

Conquering Rome in a Day with Kids

Can you really conquer the Eternal City with kids in just 24 hours?

Little Stingers: Italy’s Harmless Neighbors
Nature & World 3 lessons

Little Stingers: Italy’s Harmless Neighbors

Spotting a stinger in Tuscany? Don't panic!

The Year Without a Summer
Nature & World 7 lessons

The Year Without a Summer

Did you know a volcano in Indonesia once caused snow to fall in July in the United States?

The Fruit Salad Tree: Multi-Grafting Citrus
Nature & World 5 lessons

The Fruit Salad Tree: Multi-Grafting Citrus

Can a single tree grow lemons, limes, oranges, and mandarins all at once?

The Central Pangean Mountain Ridge
Nature & World 3 lessons

The Central Pangean Mountain Ridge

Were the Appalachians and Scottish Highlands once the exact same mountain range?

Roe Deer: Master of the European Woods
Nature & World 5 lessons

Roe Deer: Master of the European Woods

Discover the hidden life of the forest’s most elegant survivor.

Calcite Crystals: The Rock That Bends Light
Nature & World 5 lessons

Calcite Crystals: The Rock That Bends Light

What if a single clear stone helped Viking explorers navigate the foggy oceans?

Garden Smarter: Your First Permaculture Oasis
Nature & World 5 lessons

Garden Smarter: Your First Permaculture Oasis

Did you know a perfect garden never needs digging?

Earth's Biggest Blasts: The Science of Mega-Eruptions
Nature & World 5 lessons

Earth's Biggest Blasts: The Science of Mega-Eruptions

Could one volcanic eruption actually freeze the entire planet and rewrite human history?

The Urban Gardener's Secret Sauce
Nature & World 7 lessons

The Urban Gardener's Secret Sauce

Do tomatoes and basil have a secret bond beyond the salad bowl?

Fungal Networks: Earth's Internet
Nature & World 7 lessons

Fungal Networks: Earth's Internet

Did you know trees 'warn' their neighbors about insect attacks?

The Mystery of Earth's 26-Second Heartbeat
Nature & World 5 lessons

The Mystery of Earth's 26-Second Heartbeat

Did you know the Earth has a rhythmic pulse that beats every 26 seconds?

Deep Sea Bioluminescence: The Neon Abyss
Nature & World 3 lessons

Deep Sea Bioluminescence: The Neon Abyss

Why does 75% of the deep ocean glow in the dark?

DIY Masterclass: Your First Natural Stone High Bed
Nature & World 5 lessons

DIY Masterclass: Your First Natural Stone High Bed

Could a simple stack of stones transform your garden into a timeless masterpiece?

The Wonderful World of Pugs
Nature & World 3 lessons

The Wonderful World of Pugs

Ever wondered why ancient emperors treated these wrinkled comedians like absolute royalty?

Masters of Survival: The Rodents of Alberta
Nature & World 10 lessons

Masters of Survival: The Rodents of Alberta

How do tiny prairie rodents survive deep freezes and reshape entire landscapes?

Navigating the 6ix: Toronto & GTA Geography
Nature & World 5 lessons

Navigating the 6ix: Toronto & GTA Geography

Always getting lost in the 6ix? Crack the code of Toronto's streets.

Navigating the GTA: A Beginner's Guide to Toronto's Map
Nature & World 5 lessons

Navigating the GTA: A Beginner's Guide to Toronto's Map

Ever wonder how millions navigate the GTA without getting lost?

Titans of the Feline World: A Deep Dive
Nature & World 3 lessons

Titans of the Feline World: A Deep Dive

What happens when you scale a housecat to 1,000 pounds?

Secrets of the Deep Sea
Nature & World 3 lessons

Secrets of the Deep Sea

What really hides in the pitch-black alien world beneath our oceans?

The Mystery of the 52-Hertz Whale
Nature & World 3 lessons

The Mystery of the 52-Hertz Whale

Is the world's loneliest whale actually all alone?

Veronika: The Smartest Cow on Earth
Nature & World 5 lessons

Veronika: The Smartest Cow on Earth

Can a cow use tools like a chimpanzee? Meet the bovine that shocked science.

The Japanese Red Elder: Nature's Scarlet Shrub
Nature & World 5 lessons

The Japanese Red Elder: Nature's Scarlet Shrub

Could a beautiful mountain shrub be hiding a toxic secret?

The Crow Stone Age
Nature & World 5 lessons

The Crow Stone Age

Are there animals living in their own Stone Age right now?

The Toba Catastrophe: When Humanity Almost Ended
Nature & World 3 lessons

The Toba Catastrophe: When Humanity Almost Ended

Did a single volcano almost delete the human race 74,000 years ago?

The Twisted World of Corokia cotoneaster
Nature & World 3 lessons

The Twisted World of Corokia cotoneaster

Can a plant's weird shape be a survival tactic against extinct giant birds?

Avian Architecture: The Secret Life of Beaks
Nature & World 3 lessons

Avian Architecture: The Secret Life of Beaks

Why did a few tiny finches change the way we understand life on Earth?

The Mighty Potato: From Andes to Outer Space
Nature & World 3 lessons

The Mighty Potato: From Andes to Outer Space

Think you know fries? Discover the root that fueled empires and survived outer space!

The Immortal Jellyfish Secret
Nature & World 7 lessons

The Immortal Jellyfish Secret

What if you could hit a reset button on your age whenever you got old?

Greenland's Hidden Treasure: The Race for Rare Earths
Nature & World 5 lessons

Greenland's Hidden Treasure: The Race for Rare Earths

Why are superpowers suddenly fighting over Greenland’s frozen rocks?

Firefly Physics: Nature's Living Lights
Nature & World 3 lessons

Firefly Physics: Nature's Living Lights

Ever wonder how a beetle turns its butt into a biological lightbulb?

The Invisible Gem: Green Tanagers
Nature & World 3 lessons

The Invisible Gem: Green Tanagers

Ever seen a bird that vanishes in plain sight?

The Mycelium Network: Nature’s Biological Internet
Nature & World 5 lessons

The Mycelium Network: Nature’s Biological Internet

Did you know trees secretly talk to each other underground?

Abyssal Giants: Beyond the Kraken
Nature & World 7 lessons

Abyssal Giants: Beyond the Kraken

Did you know some squids have eyes the size of basketballs to see in total darkness?

The Panda Bear Sea Angel: Cute Name, Fierce Creature
Nature & World 5 lessons

The Panda Bear Sea Angel: Cute Name, Fierce Creature

Is this tiny 'panda' a cute miracle or a cold-blooded deep-sea assassin?

The Panda Bear Sea Angel: Cute or Fierce?
Nature & World 3 lessons

The Panda Bear Sea Angel: Cute or Fierce?

Is this underwater panda a gentle angel or a ruthless predator?

Siberian Tigers: Ghosts of the Snow
Nature & World 7 lessons

Siberian Tigers: Ghosts of the Snow

Did you know that a Siberian tiger's roar can paralyze its prey in fear?

Tardigrades: Nature's Astronauts
Nature & World 7 lessons

Tardigrades: Nature's Astronauts

Did you know there is a tiny animal that can stay dehydrated for 30 years and wake up like nothing happened?

Beyond the Nest: Advanced Avian Zoology
Nature & World 3 lessons

Beyond the Nest: Advanced Avian Zoology

Why are falcons closer to parrots than hawks?

Swiss Wildflowers: A Haven for Bees
Nature & World 10 lessons

Swiss Wildflowers: A Haven for Bees

Why are native perennials the secret to wild bee survival?

The Hidden Magic of Native Plants
Nature & World 10 lessons

The Hidden Magic of Native Plants

Why one oak supports hundreds of species while garden hedges are 'green deserts.'

The Secret World of Algae
Nature & World 10 lessons

The Secret World of Algae

Did you know pond scum produces half the oxygen you breathe?

Discover Uganda: Geography, Cities, & Tribes
Nature & World 5 lessons

Discover Uganda: Geography, Cities, & Tribes

Curious why Uganda is known as the Pearl of Africa?

How the Caribbean Formed
Nature & World 5 lessons

How the Caribbean Formed

How did a drifting piece of the Pacific create a tropical paradise?

Hydroponics: Grow Without Soil
Nature & World 7 lessons

Hydroponics: Grow Without Soil

Did you know plants grow up to 30% faster in water than in dirt?

Bioluminescence: Nature's Light
Nature & World 7 lessons

Bioluminescence: Nature's Light

Did you know some mushrooms glow bright enough to read by?

The Kraken: Myth vs. Reality
Nature & World 7 lessons

The Kraken: Myth vs. Reality

Did you know giant squids have eyes as large as dinner plates?

The Mystery of the 'Panda' Sea Creature
Nature & World 3 lessons

The Mystery of the 'Panda' Sea Creature

What has wings, a panda face, and hides in the deep, freezing ocean?