Watch the World's Biggest Animal Lunge for its Dinner

Scientists filming in the South Ocean off the coast of New Zealand captured this stunning footage of a blue whale eating a mass of krill. When you weigh 200 tons, even the smallest body movements require a lot of energy. That's why blue whales, Earth's largest animal, are picky eaters. Stunning new drone footage shows exactly how these massive mammals maneuver to feed on only the most nutritious patches of krill--providing insight on how they make these choices. Captured by a research team led by National Geographic Explorer Leigh Torres from Oregon State's Marine Mammal Institute, footage filmed in the Southern Ocean near New Zealand shows the moment a whale spots a patch of krill and sizes up whether it's worth expending energy.