Adult California Gray Whale (Eschrichtius robustus) baleen (detail showing interior side) on Isla Tiburon in the Gulf of California (Sea of Cortez), Mexico.

california gray whale eschrichtius robustus grey mysticete cetacea cetacean ballena gris baleen san ignacio lagoon mexico migration warm blooded mammal close up closeup close up detail mexican central america central american northern hemisphere tropic tropics tropical rorqual