Human parents often speak in “parentese” to their babies; a new study shows that dophins do the same thing!
https://apnews.com/article/dolphin-mothers-baby-talk-calves-cc0c189aa1b8e1298155b1ea78c1002a
Here’s another article:
https://www.nationalgeographic.com/animals/article/bottlenose-dolphins-mothers-baby-talk