Krill (noun)

Small crustaceans that form a vital part of the ocean's food chain and are a primary food source for many larger marine animals, including whales, seals, and penguins.

Origin:

The word krill comes from the norwegian word "krill" which means "young fry of fish" it is small crustaceans that form a vital part of the ocean"s food chain. they are a type of zooplankton, and are a primary food source for many larger marine animals, including whales, seals, and penguins.

Examples:

1. The whale fed on krill, consuming thousands of the small crustaceans.
2. Krill are a keystone species in the Antarctic ecosystem, playing an important role in the food chain.
3. The krill fishery is a major industry in some parts of the world.
4. The krill population has been declining due to overfishing and climate change.
5. Krill are a rich source of omega-3 fatty acids, they are also used as a food supplement for humans and as a food for farmed fish.