Billie is a female bottlenose dolphin that lives by Algeciras, in Gibraltar, Spain. She was first sighted by Spanish colleagues in 2006, when she was a solitary juvenile. Weeks later she was spotted among common dolphins and have been ever since.
Billie had spent her time in the company of common dolphins and have been observed interacting in their social behaviours like babysitting. Ten years later she actually had her own offspring which was an bottlenose-common dolphin hybrid. She definitely took this being a common dolphin thing very seriously!
Read more on the published scientific article here about her and the her calf!