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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.
- Dugongs Are Also Called Sea Cows. Dugongs have very muscular cleft upper lips that stick out over their mouths. These bristled and ultra-sensitive snouts are very strong and allow dugongs to root around the ocean floor and grab seagrass.
- They are Closely Related to Elephants. There were once other Dugongidae species like dugongs in the oceans, like the Steller’s sea cow (Hydrodamalis gigas).
- You Can Guess a Dugong’s Age by Looking at the Rings on Its Tusks. The tusks of a dugong are actually just two elongated front teeth. These stick out from their mouths and have sharp, angled edges.
- Dugongs Can Live for a Very Long Time. When dugong babies are born, they are only around 3 or 4 feet long and weigh 44 to 77 pounds. That may not seem all that small, but a fully grown dugong can grow up to 10 feet long and weigh over 1,000 pounds!
The Sirenia (/ saɪˈriːni.ə /), commonly referred to as sea cows or sirenians, are an order of fully aquatic, herbivorous mammals that inhabit swamps, rivers, estuaries, marine wetlands, and coastal marine waters. The extant Sirenia comprise two distinct families: Dugongidae (the dugong and the now extinct Steller's sea cow) and Trichechidae ...
The dugong is an aquatic mammal with thick, tough, and smooth skin. The skin color of newborn dugongs is pale cream, darkening as they age, becoming deep slate gray on the sides and dorsum. The body of the dugong is sparsely covered with hair, and the muzzle exhibits bristles. The upper lip is cleft and muscular, hanging over the mouth, which ...
May 27, 2024 · The dugong is one of four living members of the order Sirenia — the others being three species of manatees — and the only living member of the family Dugongidae. A second member of the family, Steller’s sea cow, was driven to extinction in the 18th century due to overhunting. Nineteen total genera from the family are known from the fossil ...
- Female
- April 22, 1960
Sirenian bones are exceptionally dense, most of them lacking marrow. This adaptation is thought to help maintain neutral buoyancy. Manatees and dugongs differ in a number of traits besides the shape of the tail. Manatees lack incisor teeth, but incisors do occur in dugongs, erupting as tusks in the males.
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Is a dugong a sirenian?
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Jan 4, 2021 · Sirenians have a strong preference for warm waters. However, there is a difference between dugong and manatee habitats. Dugongs are exclusively marine, while manatees inhabit both marine and freshwater systems. They live in swamps, rivers, estuaries, marine wetlands, and coastal marine water. Sirenians have no dorsal fin.
