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rats within the dark
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The Big Leap  

Fleas are known for their impressive jumping ability. These tiny insects can jump up to 200 times their body length, making them one of the best jumpers in the animal kingdom. So, how do fleas jump so far and what is the biology and physics behind their extraordinary jumping ability?  

How Fleas Jump High

Flea's jumping ability is made possible by its unique anatomy. Their hind legs are long and powerful, with a special joint that acts like a spring. This joint, called the trochanter, is connected to the flea's leg muscles and is held in place by a tough, elastic protein called resilin. When a flea prepares to jump, it contracts its leg muscles and stores energy in the resilin protein. Then, when the flea releases this energy, the resilin acts like a spring, propelling the flea forward and upward with incredible force. The physics behind a flea's jump is quite complex. As the flea jumps, it creates a force that propels it upwards and forwards. This force is determined by the speed and angle at which the flea jumps and the force generated by its leg muscles.  

A Key Factor

Another key factor in the flea's jumping ability is its small size. Because fleas are so tiny, they can accelerate faster and reach higher velocities than larger animals. This means that fleas can jump much farther relative to their size than larger animals.  

The flea's leaping ability

The flea's jumping ability results from a combination of biology and physics. By studying the anatomy and mechanics of these tiny insects, scientists can gain insights into the workings of the natural world and how living organisms have adapted to their environments. While some may consider fleas pests, their incredible jumping ability is a testament to the remarkable diversity and ingenuity of life on Earth. 


If you have a problem with fleas or any other type of pest contact that needs professional treatment contact us below or call us on 07443 052851, and our experienced, friendly team will offer advice and provide an effective solution.