Nature & Animals
How do dolphins sleep?
They sleep with half their brain awake and one eye open. That's how dolphins solve the impossible problem of sleeping without stopping breathing underwater.
🌿 Nature & Animals
Nature & Animals
The natural world, animals and how to care for them.
Nature & Animals
How do chameleons change color?
Not just camouflage: pigments, nanocrystals and mood explain the chameleon's surprising color change.
Nature & Animals
How long do turtles live?
Some turtles outlive humans and even pass 100 years. How long turtles live, why they age so slowly, and what the record-holders teach us.
Nature & Animals
What do pandas eat?
A bear that eats almost nothing but bamboo, and a lot of it. Why the giant panda chose the hardest diet and how its carnivore's body copes.
Nature & Animals
Why are flamingos pink?
Flamingos aren't born pink: their color comes from their diet. We explain carotenoids, how they filter their food and why pink matters.
Nature & Animals
Why do fireflies glow?
A living light with almost no heat. How fireflies produce their glow through bioluminescence, why they flash, and what those signals mean.
Nature & Animals
How do bees make honey?
From the flower's nectar to the honeycomb: the mouth-to-mouth process, the enzymes and the wing-fanning with which bees turn liquid sugar into honey.
Nature & Animals
Why do dogs wag their tails?
It's not always happiness: a dog's tail is a language. What the different wags mean, why the direction matters, and how to read your dog better.
Nature & Animals
Why do cats purr?
It doesn't always mean happiness: cats purr from pleasure, but also to calm down and even to heal. The surprising science of purring.
Nature & Animals
Why do birds migrate?
Thousands of kilometers twice a year in search of food and good weather. Why birds migrate, how they know where to go, and how they navigate without maps.