Section: Reading

74) View Additional Information

By using the phrase "saber-toothed" to characterize some of the fishes that live in the deepest waters, the author is suggesting that the fishes:

are still at an early stage of evolution.
appear frightening to behold.
are ferocious food - gatherers.
are soon likely to beome extinct.

Explanation

The ferocity of the creatures is being emphasized. The other choices may merely call to mind the extinct saber-toothed tiger.

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