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While its roughly 66-foot length doesnt break records, its weight does. The whale was about as heavy as 35 school buses, a study estimates.

Perucetus likely weighed two to three times more than the blue whale, which today weighs a maximum of 149.6 metric tons.

A newly discovered ancient species of whale may be one of the largest and heaviest animals on record, a new study has found.

By Kristen Rogers, CNN (CNN) — A colossal ancient whale discovered in Peru might be the heaviest animal on record, according to a new study.At an

While its roughly 66-foot length doesnt break records, its weight does. The whale was about as heavy as 35 school buses, a study estimates.