大象传媒

Killer whales are 鈥榠ncredibly tactile, I would say, sexual creatures鈥�, says Deborah Giles who is Director of Research at the Center for Whale Research in the United States. Old matriarch whales are hugely important in the life of their family groups, and that may include providing 鈥榮ex education鈥� to the younger males. 鈥楪iles鈥� also explains to Victoria Gill the orca practise of 鈥榮word fighting鈥�.

Image credit: Jane Cogan