Tourists on a whale-watching boat off Australia witnessed five families of killer whales attack 150-ton mammal.

Killer whales are known for hunting in packs, making them a dangerous creature. A pod of more than 60 orcas, better known as killer whales, have been spotted attacking and killing an 18-metre-long ...

An orca attack on a pygmy blue whale is witnessed by researchers and tourists onboard a whale-watching vessel off the WA coast. It is one of just a handful of documented killer whale attacks on a ...

More than 60 orcas worked together to attack the blue whale, only the fourth such recorded instance of its kind, according to Yahoo! News Australia. Video of the attack was posted on the Facebook ...

Tourists off Australia's Bremer Bay watched as the orcas surrounded a 60ft endangered pygmy blue whale and tore it to shreds in a savage 90-minute attack. The event is so rare it's only the fourth ...

The brutality of nature was on full display along the Aussie coast this week as a boat full of tourists was treated to the ...

The employees of the company Naturaliste Charters Whale Watching could hardly believe their eyes when they saw what this orca ...

"There were five families of the orcas around the blue whale and they all started to hunt it," Machu said. The more than 60 orcas in the water were "working together" to attack one of the largest ...

File photo of a blue whale off the coast of Bandon ... only coming together to mate. These whales flee when orcas attack. Their long, powerful streamline bodies allow them to sustain high speeds ...