How can fish bolt so fast?

Question

Ever notice how fast fish bolt away when scared?

[example](https://youtu.be/Y-5ffl5_7AI?t=85)

In: Biology

Answer 1

While they have to push their bodies through a heavy fluid – water – they also can push off against that fluid. Many fish have large pectorial fins at the front that they can snap backwards to push themselves forward, or they can use their tail to push against the water. Together, it means that they can accelerate themselves quickly, darting away fast.

Of course, it helps that any fish that doesn’t dart away really fast soon becomes someone else’s meal. Only the fast survive!