‘Scientists’ are trying to figure this out.
Meanwhile, ‘The working assumption among ocean sailors is that sailing yachts, moving in silence on the ocean, sometimes strike and injure “half sleeping” whales.’
How soon till a mandatory noise maker on sailboats? For the Whales, you know.
Ocean sailors have known this forever. It’s even in Moby Dick, toothed predator (sperm) whales ramming and sinking wooden ships.
#62, GMTA