May 20, 2023 08:32 AM
https://www.livescience.com/animals/orca...me-but-why
EXCERPTS: Orcas have attacked and sunk a third boat off the Iberian coast of Europe, and experts now believe the behavior is being copied by the rest of the population.
Three orcas (Orcinus orca), also known as killer whales, struck the yacht on the night of May 4 in the Strait of Gibraltar [...] skipper Werner Schaufelberger said he saw the smaller orcas imitate the larger one. "The two little orcas observed the bigger one's technique and, with a slight run-up, they too slammed into the boat." Spanish coast guards rescued the crew and towed the boat to Barbate, but it sank at the port entrance.
Two days earlier, a pod of six orcas assailed another sailboat navigating the strait. Greg Blackburn, who was aboard the vessel, looked on as a mother orca appeared to teach her calf how to charge into the rudder. "It was definitely some form of education, teaching going on," Blackburn told 9news.
Reports of aggressive encounters with orcas off the Iberian coast began in May 2020 and are becoming more frequent, according to a study published June 2022 in the journal Marine Mammal Science. Assaults seem to be mainly directed at sailing boats and follow a clear pattern, with orcas approaching from the stern to strike the rudder, then losing interest once they have successfully stopped the boat.
[...] Most encounters have been harmless, López Fernandez told Live Science in an email. "In more than 500 interaction events recorded since 2020 there are three sunken ships. We estimate that killer whales only touch one ship out of every hundred that sail through a location."
[...] "The orcas are doing this on purpose, of course, we don't know the origin or the motivation, but defensive behavior based on trauma, as the origin of all this, gains more strength for us every day," López Fernandez said... (MORE - missing details)
On the Strait of Gibraltar, orcas spent an hour ramming a a British couple’s yacht
https://www.youtube-nocookie.com/embed/Nud-OeNUKD8
EXCERPTS: Orcas have attacked and sunk a third boat off the Iberian coast of Europe, and experts now believe the behavior is being copied by the rest of the population.
Three orcas (Orcinus orca), also known as killer whales, struck the yacht on the night of May 4 in the Strait of Gibraltar [...] skipper Werner Schaufelberger said he saw the smaller orcas imitate the larger one. "The two little orcas observed the bigger one's technique and, with a slight run-up, they too slammed into the boat." Spanish coast guards rescued the crew and towed the boat to Barbate, but it sank at the port entrance.
Two days earlier, a pod of six orcas assailed another sailboat navigating the strait. Greg Blackburn, who was aboard the vessel, looked on as a mother orca appeared to teach her calf how to charge into the rudder. "It was definitely some form of education, teaching going on," Blackburn told 9news.
Reports of aggressive encounters with orcas off the Iberian coast began in May 2020 and are becoming more frequent, according to a study published June 2022 in the journal Marine Mammal Science. Assaults seem to be mainly directed at sailing boats and follow a clear pattern, with orcas approaching from the stern to strike the rudder, then losing interest once they have successfully stopped the boat.
[...] Most encounters have been harmless, López Fernandez told Live Science in an email. "In more than 500 interaction events recorded since 2020 there are three sunken ships. We estimate that killer whales only touch one ship out of every hundred that sail through a location."
[...] "The orcas are doing this on purpose, of course, we don't know the origin or the motivation, but defensive behavior based on trauma, as the origin of all this, gains more strength for us every day," López Fernandez said... (MORE - missing details)
On the Strait of Gibraltar, orcas spent an hour ramming a a British couple’s yacht
