John Updike

John Updike growth of Sirenia Many scientists intend that sirenians evolved close to fifty-five zillion years ago from sm entirely foot animals. The closests existent relatives today atomic number 18 elephants and excellent asian mammals called hyraxes. Although there argon vast differences between elephants, hyraxes, and sirenians, fossil evidence shows that all cardinal evolved from a common ancestor. The manatees corporal characteristics be visible remnants of their ancient heritage. The dugongs tusks ar another(prenominal) link to elephants. Like elephants, sirenians are enormous animals. thither are five species of Sirenia, but scientists ponder that there were numerous much in the past. Early forms of manatees are thought to cast originated go on the Amazon basin in South America. about remained there to become the Amazonian manatee, while others migrated up through the Caribbean, magnanimous grind away to the Antillean and Florida manatees. Another group managed to submerge or where carried on currents acro...If you sine qua non to get a well(p) essay, order it on our website: OrderCustomPaper.com

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