Okay, so they still look like Depression-era bath toys, but Maurizio Porfiri's robot fish
have come a long way from the coconut-and-tin-foil look they were sporting last summer. In an attempt to further "close the loop" between robotics and nature
, Porfiri has continued to tinker with the little leaders by incorporating diving and surfacing into their aquatic repertoire, and it seems to be working: real fish have shown interaction patterns including tracking, gathering, and following in the presence of the pesci-bots
. Now if they could just do the same with the the feral ferret living in our bedroom walls...