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Cetacea
infraorder of mammals / From Wikipedia, the free encyclopedia
The order Cetacea are marine mammals that live in oceans, seas and even a few rivers around the world. Whales, dolphins and porpoises are part of this group. These common names refer to size: whales are the largest, porpoises the smallest. How and what they eat is a better guide to their relationships. The study of cetaceans is called cetology.
Quick Facts Cetacea Temporal range: Early Eocene – Present, Scientific classification ...
Cetacea Temporal range: Early Eocene – Present | |
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Infraorder: | Cetacea |
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Cetaceans are ocean creatures without toes, but are classified in the related order Cetartiodactyla because their ancestors were even toed ungulates.