The video explains why cheetahs are the fastest land animals, despite their size. It delves into muscle types, highlighting the difference between slow and fast twitch fibers. The relationship between size and speed is explored, revealing that medium-sized animals often achieve higher speeds. A model predicting animal speed based on body size is introduced, applicable to various species, including extinct ones. The video concludes with a discussion on the cheetah's unique physical traits that contribute to its speed.

How does the model developed by researchers in 2017 help in understanding animal speed?

What conclusion can be drawn about the speed of cheetahs compared to T. rex based on the text?