is more than cycle Thermal are orcas at the top of the food chain Booth Long Prehistoric
Sea Save Foundation - FUN FACT: Orcas are predators that are at the top of the food chain. No other animals except for humans hunt orcas. Orcas feed on sea birds, squid,
Fact File: Orca (Orcinus orca) - Australian Geographic
Orcas vs great white sharks: in a battle of the apex predators who wins? | Science | The Guardian
Is it true that there is nothing above orcas in the food chain? - Quora