Got some time and want to help some fish out? You’re in luck, Utrecht’s famous “fish doorbell” (“visdeurbel” in Dutch) is open for the spawning season.
This ingenious tool helps fish bypass the city’s Weerdsluis lock, a barrier in their upstream springtime journey to spawning grounds. — Read the rest
The post Ding-dong: Press the 'fish doorbell' to help spawning fish get through a locked door appeared first on Boing Boing.
