Krill

 Krill

They are tiny shrimp-like crustaceans and swim in the seas. Getting collect in large, dense masses called "swarms" or "clouds," these pink, transparent animals change some areas of the ocean's surface pink. Krill are very important in the food cycle because many animals eat them.

There are about 85 species of krill, including under 0.5 inch (1 cm) up to 5.5 inches (14 cm) long. The most frequent krill is the Antarctic krill, which length is up to 2.3 inches (6 cm) long and weighs about 0.035 ounces (1 g). Antarctic krill lives about 5 to 10 years. Antarctic Krill is considered to be a fundamental species since many Antarctic predators depend on them.

 Foot:   Krill eat phytoplankton. Krill lives about 320 feet = 100 m deep and are safe and sound from their main predators. They swim to eat phytoplankton. They can go without eating for up to 200 days.

 Body:  Krill have a hard exoskeleton, many legs and a segmented body.

Females produce approximately 1,000 eggs each summer; the eggs are laid at the surface, but fall to great depths. The hatchlings swim back to the surface to nourish.

 Food Cycle:  Phytoplankton is eaten by krill and Krill are eaten by many organisms, including fish, squid, sea birds, and mammals like baleen whales and some seals.

 Class:  Kingdom Animalia (animals), Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, Order Euphausiacea

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