The bizarre behavior had previously been observed in experimental settings and was thought to be a competitive attempt to escape from the rest of the group. But new research suggests a more cooperative motivation.

Scientists capture tiny worms creating towering "superorganisms" in the wild.

Nematodes are the most abundant animal on earth, but when times get tough, these tiny worms have a hard time moving up and out. So, they play to the strength of their clade. If food runs out and compe