Question: Could a shark eat an orca?

Lydia Bach answered on 13 Nov 2014:

Hi Farah and Eanna,

Yes, but rarely because orcas are often larger (male orcas can be 12 meters while great white sharks, are ‘only’ 10 meters) and tend to stay in their groups. But sometimes sharks can successfully hunt and kill smaller younger orcas that are separated from their group.
And orcas have also been seen in the wild to hunt together and eat sharks such as hammerheads, blue sharks and shortfin mako sharks. That is more common than sharks eating orcas.