noun
- small marine crustaceans that swim in large groups and serve as food for whales, fish, and other sea animals
Examples
- Blue whales feed almost exclusively on krill.
- The Antarctic waters are rich in krill during the summer months.
- Krill form massive swarms that can be seen from space.
- Many seabirds depend on krill as their primary food source.
- Scientists study krill populations to understand ocean health.
- The tiny krill are a crucial part of the marine food chain.