Fish
Fish beware: Bottlenosed dolphins may be able to pick up your heartbeat
To snap up fish, bottlenosed dolphins may rely on more than just sharp sight and sonar detection. The creatures might also pick up on the weak electric pulses prey produce each time their hearts beat or air filters through their gills. In a new experiment, two bottlenosed dolphins named Dolly and Donna reliably sensed faint…
Robot eel reveals how the strange fish swim so efficiently
Tests with an eel-inspired robot show that the unusual fish may swim most efficiently by reducing their speed Source link