Post-menopausal killer whales protect their adult sons from fights, research shows.
Click here for original story, Orca mothers keep 5-tonne sons out of trouble
Source: BBC News – Science & Environment
Post-menopausal killer whales protect their adult sons from fights, research shows.
Click here for original story, Orca mothers keep 5-tonne sons out of trouble
Source: BBC News – Science & Environment