Grey whale (eschrishtius robustus) showing flipper above water, heavy scarring, san ignacio, mexico

horizontals whales scarring developing country gray endothermic animals horizontal mysticeti robustus developing countries wildlife sea marine eschrishtius aquatic central america vertebrate endotherm carnivore mammal carnivores robustus whale warm vertebrates water cetacean blooded mammalian mammals whale carnivorous nature mexican endangered cetacea baleen grey san eschrichtius central american zoology mexico flipper third world seas water grey ignacio fauna animal