Guppies used to monitor water supply

[asmack]

Interesting article:

Guppies used to monitor water supply

 

[noop]

very clever. maybe one day every home will have one

 

[Inchworm]

Hi asmack

Good article! IMHO, it's a sad state of affairs when we even have to think about such things, but............

Who knows, but even though it seems like a pretty grim existence for them, perhaps one day fish will turn out to be the heroes that save a city.