At sea, most predators must search vast surfaces for seafood. None travels further then the world's largest animal, the blue whale, which routinely swims trough all oceans, yet survives on swarms of tiny krill. Many hunt rather from shores, like sea lions. Some develop ingenious social collaboration, like dolphins. Sea birds also adapt to different hunt techniques,, like the giant wing-spanned albatross covering immense distances. Sargasso fish are highly specialized to wait for prey floating into their camouflage-fit hidings under floating grass. The strangest are found, or often unexplored, deep in the oceans.