In terms of evolution, how long have manatees been around? Were they around with the dinosaurs?
A. It is estimated that manatees and their relatives have been on earth for approximately 45 million years. Q. Why does it take the manatees so long to reach the age where they can reproduce, particularly the males? Female manatees are not sexually mature until five years of age. Male manatees are mature at approximately nine years of age. Manatees do not develop the physical capabilities necessary for reproduction until they reach this age. Q. If a mother manatee died leaving young, would another manatee take over the care for the young? A. This has occurred, but it depends on the individual manatee female. Some will adopt an orphaned calf, and some will not. Q. How do manatees communicate? A. Manatees communicate through sound, sight and probably taste, touch, and smell. Manatees emit sounds underwater that are believed to be used in communicating with one another. Manatee sounds can be described as chirps, whistles or squeaks. Vocalizations may express fear, anger, or sexual arousal
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