https://apnews.com/4240b38444a7752d70a358c1e50be1a9

KENSINGTON, Maryland (AP) — Master builders of the sea construct the equivalent of a complex five-story house that protects them from predators and funnels and filters food for them — all from snot coming out of their heads.

And when these delicate mucus homes get clogged, the tadpole-looking critters — called giant larvaceans — build a new one. Usually every day or so.