anything
No animals eat orca because orca have been seen killing even great white sharks, but the country of Japan thinks orca meat is a delicacy so they hunt and eat orca.
A 'baby' orca will suckle milk from its mother.
No shark can kill a orca. But if the Megalodon was still alive, then it could eat the orca.
yes
Orca Whales do eat penguins. The Orca diet also consists fish, squid, seals, sea lions, dolphins, porpoises, and large whales such as the Blue Whale.
Blue whales are filter feeders, and can't eat anything as big as an orca. They don't have any teeth to take one apart either.
yes
they eat and drink their mothers milk
No they are awesome though
Seals, especially leopard seals, and killer whales (Orca orca).
Nothing a orca can attack a great white shark nothing can get this animal