Graphical abstract (IMAGE)
Caption
The study shows that male sperm whales produce low-frequency slow clicks at low repetition rates with extreme source levels > 200 dB re 1 µPa (pp), making them the loudest mammalian communication signal, with an estimated active space of ∼70 km. Slow clicks are highly rhythmic at rates of 0.1−0.3 Hz (ICI = inter-click Intervals), which is an order of magnitude slower than other rhythmic communication signals among mammals and birds.
Credit
Simone Videsen, AU
Usage Restrictions
Credit must be given to the creator. Adaptations must be shared under the same terms.
License
CC BY-SA