How Fast Is Flea Jump?

Fleas launch at about 1.9 metres per second, accelerating at 100g — one of the highest accelerations in the animal kingdom. Proportional to their body size they're the best jumpers in nature, equivalent to a human leaping 140 metres straight up.

A flea jump scaled to human size would clear a 140 m skyscraper.

• Proportionally, equivalent to a human leaping 140 m up
• Accelerates at 100g — pilots black out at 9g