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This Is the Biggest Whale, by Length and by Weight
One of the most unique about whales is that they're the largest animals to ever exist on Earth — even bigger than the largest ...
Science Daily23h
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 ...