Krill is a major part of the Antarctic food chain, but it doesn't start there.
Krill are eaten by Penguins, Antarctic Birds, Seals, Whales, Fish and Carnivorous Zooplankton.
Phytoplankton feeds krill and herbivivorous zooplankton.
Herbivorous Zooplankton are eaten by krill and carnivorous zooplankton as well as fish and squid.
Carnivorous Zooplankton eat krill and herbivorous zooplankton.
They are eaten by fish, Antarctic birds and other Antarctic seals.
Antarctic Fish feed many animals. They include Penguins, Elephant Seals, Leopard Seals and Petrels.
Antarctic Birds, like the Albatross, feed on Zooplankton, Fish and Krill.
Their natural predators are Leopard Seals.
Antarctic Squid feast on Krill, Herbivorous Zooplankton and Fish. These vertebrates tend to hide from Penguins, Elephant Seals, Smaller-Toothed whales and Sperm Whales.
Apart from Elephant Seals and Leopard Seals, the other Antarctic Seals mainly consist of a diet of Krill and prefer avoiding whales.
Elephant Seals love snacking on Fish and Squid, especially in the moulting season.
However, whales, typically smaller-toothed whales like to gobble these sea mammals.
Antarctic Penguins like eating Krill, Fish and Squid, be it Breakfast, Lunch, Dinner or any time of the day.
No matter how brave they are, it's always best for them to avoid Leopard Seals and Smaller-Toothed Whales.