Question: Bender "Ben" Johnson Jr. was the chairman of the Makah during the first successful hunt of Eschrichtius robustus which is commonly known as what?
Sentence (from "Gray whale"): The gray whale ("Eschrichtius robustus"), also known as the grey whale, gray back whale, Pacific gray whale, or California gray whale is a baleen whale that migrates between feeding and breeding grounds yearly.
Relevant evidence: Yes