Scars left by orca attacks indicate that most victims are young whales on the first trip from breeding to feeding grounds. Increasing numbers of scars may mean that there are more orcas in the Southern Pacific, researchers say.
Scars left by orca attacks indicate that most victims are young whales on the first trip from breeding to feeding grounds. Increasing numbers of scars may mean that there are more orcas in the Southern Pacific, researchers say.