i think there should be a whale that somehow uses its echolocation offensively (maybe to stun prey so its easier to eat it) (less energy for movement required means more energy for other things (like the sonar)) i think this is a great idea
Dolphins do this! And it’s been hypothesized that Sperm Whales can, but it’s unconfirmed because we’ve never been able to witness how they fight giant squid up close!! Two of the biggest animals to ever exist are fighting each other every single day and we’ve never seen it!