Sperm whales (Physeter macrocephalus) are renowned for their complex social structures and behaviors, facilitated by their unique vocalizations. These whales produce codas — a sequence of rapid, Morse code-like clicks used during social interactions. These aren’t random jumbles of clicks but rather purposeful vocalizations that have meaning almost like you or I would utter words. For instance, sperm whales use codas to identify themselves or outside clans. And this knowledge is passed down culturally, as young calves are not born able to produce codas. They learn by mimicking their parents. Pr…