Why are orcas suddenly ramming boats?

Why are orcas suddenly ramming boats? It's an unprecedented phenomenon, says Alfredo López Fernández, an orca researcher at the Atlantic Orca Working Group, which is monitoring the Iberian orcas. They were really well organised - Andrea Fantini "20 minutes ago we got hit by some orcas," says Jelmer van Beek, the skipper of Dutch sailing team JAJO, in a video filmed this summer in the Atlantic Ocean to the west of Gibraltar, during a leg of The Ocean Race. There were three "ringleaders" who were most involved in these interactions: an adult orca called White Gladis, and two young ones, Black Gladis and Grey Gladis.. Over the years, more orcas have joined them. Orcas are cultural beings and often start a fad – Lori Marino "All of this makes us think that human activities are at the origin of these behaviours, even if it's in an indirect way," says López.