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The "Terror of Antarctica", a predator at the top of the food chain50 million years ago, the phorusrhacid, a 2-meter-high carnivore, was at the top of the food chain. The bird was ... only in ...
Scientists track Antarctic krill via satellite to monitor ocean health amid climate change and fishing threats.
The waters around Antarctica, which support few species but large populations, are one of the richest biological provinces on earth. The key organism in the simple food chain is the shrimplike krill ...
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