70 orcas target young blue whale in four-hour killing orgy off WA coast

“The orcas had a plan. This was a glimpse into the life of the ocean’s apex predator.”

That is how marine scientist Kirsty Brown summed up how up to 70 orcas hunted and killed a blue whale off Western Australia’s southern coast over several hours on Tuesday.

It is one of just a few times an orca predation of the ocean giant has been witnessed.

Multiple pods joined forces to take down the juvenile blue whale at the Bremer Canyon — a marine hotspot about 50km off the coast.

“We saw nature in all its glory, the harsh and the beautiful,” Ms Brown wrote in a blog about the incident, witnessed by scientists and tourists aboard Naturaliste Charters Bremer tour boat.

A similar killing in 2019 was believed to be the first time killer…