How Fast Is Common Dolphin?

Dolphins cruise at 37 km/h and can burst to 65 km/h. They surf ship bow-waves because it costs them no energy — and recognise themselves in mirrors, a rare sign of self-awareness shared with only a handful of species.

Dolphins are one of very few species that recognise themselves in mirrors — a sign of genuine self-awareness.

• 5× faster than Michael Phelps
• Recognise themselves in mirrors