New research finds male baleen whales looking for love sing a different tune when attracting a mate, and it all depends on if they are more likely to fight or flee from a predator
A Blue whale surfaces in front of a ship during a whale watching trip on the Pacific Ocean from Long Beach, Calif., in 2014.New research suggests male baleen whales looking for love sing a different tune when attracting a mate, and it all depends on if they are more likely to fight or flee from a predator.
The whales that travel in groups and are more likely to fight a killer whale, include right, bowhead, grey and humpback, while those that travel solo and are more prone to flight include blue, fin, sei, Bryde’s and minke whales. “A whale you can hear for hundreds of kilometres away, and yet a killer whale could be right next to it and couldn’t hear it. They could hear, probably, the sound of the blow, or the sound of them splashing, but as soon as you get beyond the range of that it’s like they’re completely acoustically invisible. Like ghosts in the water.”He found only 24 per cent of flight species call above 1500 Hz, and generally very quietly, so they can’t be heard further than one kilometre away.
“Blue whales everywhere in the world, every population, over any time period you look at, their calls have been getting deeper and deeper over time and this is a completely unexplained mystery,” he said.
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