Media coverage: Porpoises, whales and dolphins use 'sound searchlights'

In their Research article -- Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena) -- Wisniewska et al. show that harbor porpoises can finely adjust the beams of sound they use as they track and capture prey, focusing the beam through deformations to the melon.

Examples of the media coverage recieved by this study are shown below;