大象传媒 OS - 'Killer whales are bullies and humpbacks are bouncers' - 大象传媒 Sounds

大象传媒 OS - 'Killer whales are bullies and humpbacks are bouncers' - 大象传媒 Sounds
'Killer whales are bullies and humpbacks are bouncers'
New study shows humpback whales seem to protect other species from killer whale attacks