Only 10% of all people who buy a gym membership go regularly; the rest give up.

It costs £45,000 a year to keep a person in prison in the UK — that's one and a half times more expensive than sending them to university.

A teaspoon of honey is the result of a lifetime's work of 12 bees.

Cats hunt even if they are not hungry.

📌 Unlike mammals, a shark's teeth are skin formations (modified scales). They constantly grow and move to replace the ones that have fallen out. Throughout its life, a shark can replace tens of thousands of teeth in its jaw.

🌸 Flamingos are not born pink. Their coloration develops thanks to a diet that includes small red shrimp and algae containing carotenoids.

The most environmentally friendly energy is nuclear energy.