Some species of baleen whales may avoid attracting killer whales by singing too low to be heard
Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...
Public Broadcasting Service (PBS)7 天
Pack-Ice Killer Whale Sounds — on Film
Pack-ice killer whales are highly social creatures, communicating through various vocalizations like pulsed calls and whistles. For the first time, researchers have recorded these vocalizations and ...
Science Daily5 天
Some species of baleen whales avoid attracting killer whales by singing too low to be heard
New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be the ...