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Killer whales are medium sized cetaceans (all whales are cetaceans, but not all cetaceans are whales--Orcas are more closely related to dolphins). The males grow up to an an average size of 30 feet or more and the females grow up to be an average size of 18 feet long. The average weight of a killer whale is about 9 tons.

Nine metric tons is 9,000,000 grams.

Nine imperial tons is 8,164,662.66 grams.

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13y ago

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