system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How are Rats and other smaller Mammals with tiny limbs capable of moving so fast?
gpt
Fast may not be the correct term here. They are quick. Most small prey can accelerate and change directions very quickly, but can't run all that fast in a straight line. They look fast, but if you put them in an open area, a coyote or something similar could easily run them down.

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