Looking a lot like shrimp, these tiny crustaceans are found in enormous numbers in the world’s oceans, where they are one of the main food sources for many other marine creatures.
Krill are tiny crustaceans (animals belonging to the group that includes shrimp and crabs). Krill are found worldwide as part of the plankton, often near the surface and especially in the polar seas.They are very abundant in the Southern Ocean around Antarctica, frequently occurring in huge numbers. Krill feed on minute floating plants called phytoplankton. In turn, krill are preyed on by whales which sieve the surface waters swallowing tens of thousands of them in one gulp—up to 4 tons in one day’s feeding! Different whale species are adapted to take krill of different sizes. 