Why four-legged animals are better sprinters

Source: Science Daily

Scientists have studied the characteristics determining the maximum running speed in animals. The model they developed explains why humans cannot keep up with the fastest sprinters in the animal kingdom. Based on these calculations, the giant spider Shelob from ‘The Lord of the Rings’ would have reached a maximum speed of 60 km/h.

https://www.sciencedaily.com/releases/2021/07/210723105319.htm