Dolphin Baby starts learning from womb

Moms-to-be start whistling more often about two weeks before they give birth, according to scientists who tailed a mom-baby duo at Six Flags Discovery Kingdom in Vallejo, California. 

Because dolphins have unique calls, this uptick in vocalizations may have been an effort to teach the baby dolphin her mom’s signature whistle while she was still in the womb. 

Interestingly, research into human mothers’ vocalizations suggests that we have signature tunes as well.