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Like all modern sirenians, the dugong has a fusiform body with no dorsal fin or hind limbs. The forelimbs or flippers are paddle-like. The dugong is easily distinguishable from the manatees by its fluked, dolphin-like tail; moreover, it possesses a unique skull and teeth.
Jan 4, 2021 · 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.
- 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 dugong is the only sirenian in its range, which spans the waters of some 40 countries and territories throughout the Indo-West Pacific. The dugong has been hunted for thousands of years for its meat and oil.
The extant Sirenia comprise two distinct families: Dugongidae (the dugong and the now extinct Steller's sea cow) and Trichechidae (manatees, namely the Amazonian manatee, West Indian manatee, and West African manatee) with a total of four species. [2]
6 days ago · Dugongs are usually observed singly or as pairs, and sightings of dugongs by early seafarers are believed to have given rise to the mythology of mermaids and Sirens. Herds of 100–200 dugongs, however, are sometimes seen, 450 being the maximum recorded.
Sirenian bodies are basically round in cross-section and taper toward the tail, which is flattened horizontally and provides propulsion. Dugong tails are deeply notched, similar to those of whales, whereas in manatees the tail is rounded outward like a paddle. Sirenians in general are slow-moving but capable of short bursts of speed.
