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The dugong (/ ˈ d (j) uː ɡ ɒ ŋ /; Dugong dugon) is a marine mammal.It is one of four living species of the order Sirenia, which also includes three species of manatees.It is the only living representative of the once-diverse family Dugongidae; its closest modern relative, Steller's sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.
Sirenians are slow-moving, typically coasting at 8 kilometres per hour (5.0 miles per hour), but they can reach 24 kilometres per hour (15 miles per hour) in short bursts. They use their strong lips to pull out seagrasses , consuming 10–15% of their body weight per day.
The dugong is a species of marine mammal similar to the American manatee and can grow to about 3.4 meters (11 feet) in length. Thai vets nurture lost baby dugong with milk and sea grass Skip to ...
There is a positive relationship between mass at birth and length of gestation in eutherian mammals. [17] Larger mammals are more likely to produce a well-developed neonate than small mammals.
More children are born in America about nine months after. ... The most babies are born in the summer, with an average of 12.25 births per day. ... Only 6.85 children are born across the country ...
Manatees typically breed once every two years; generally only a single calf is born. Gestation lasts about 12 months and to wean the calf takes a further 12 to 18 months, [10] although females may have more than one estrous cycle per year. [22]
A fossil reveals how a now-extinct species of dugong was swimming in the sea about 15 million years ago when it was preyed upon by a crocodile and a tiger shark.
Helene Denise Marsh (born 8 April 1945) is an Australian scientist who has provided research in the field of Environmental Science, more specifically Zoology and Ecology. The focal point of her research has been the biology of dugongs , with particular foci in the areas of population ecology, history, reproduction, diet, and movements. [ 1 ]