“It showed this profile going down the shelf to 580 meters, then a huge temperature change ... another living animal,”
To have the huge temperature change, it would make sense that it was a whale, as they are warm blooded.
Indeed. They are mammals. Like porpoises, who also attack great whites.
Orcas in a pod vs 2 or 3 sharks-— done deal. They eat them.
Hence the name “Killer” whales.
This is no mystery. But good click bait.