alt Hacker News>Everyone is chasing the person ahead of them
This is part of what turns grasshoppers into locusts. They're attempting not only to eat the insect in front of them, but escape the one behind that is attempting to eat them. I'll leave it up to the reader to complete the metaphor.
> Increased tactile stimulation of the hind legs causes an increase in levels of serotonin.This causes the locust to change colour, eat much more, and breed much more easily. [1]
Fascinating.
[1] https://en.wikipedia.org/wiki/Locust