We sleep for around one third of our lives. If you live until you're 90 years old you will have slept for a remarkable 32 years.

If you live ‘til you’re 90 you will have slept for 32 years

Well, the barnacles we see don’t move. But when they’re little, they do swim, and once they’ve found their spot they basically cement themselves in place. They’re what’s known as sessile animals — ones that don’t move once settled, along with mussels and coral. Now that would be a different way of life.

Watch out for barnacles

Not my invention. Most recently spotted via the excellent Eva-lotta Lamm.

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