Dolphins continue to surprise us with their uncanny similarities with humans. On top of impressive communication skills and emotional abilities, it turns out dolphins can do something that we have long considered only the domain of human beings - do “baby talk” with their babies, much like we do with our own babies or pets. ⁠ ⁠ Scientists have discovered that female bottlenose dolphins used higher-pitched voices when they called out to their calves, in a study published on Monday in the journal Proceedings of the National Academy of Sciences of the United States of America (PNAS).⁠ ⁠ The research team monitored 19 dolphin moms over three decades, collecting sound data of their signature whistles — unique sounds each dolphin makes, sort of like their names. When comparing the sounds made in the presence of the dolphins’ babies to those made in their absence, the team noticed a difference in pitch. This was the case for all 19 dolphins. ⁠ ⁠ The scientists think this may be a way to gra...