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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.
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Dugong skeleton displayed at Philippine National Museum. Dugongidae's body weight ranges from 217 to 307 kg for juveniles, 334 to 424 kg for subadults, and 435 to 568.5 kg for adults. Oral temperatures for individual dugongs is determined from 24° to 34.2 °C. Heart rate readings are from 40 to 96 bpm and vary between individual dugongs.
Individuals may migrate north in the warm summer months, some up to 1,000 kilometers (about 621.37 mi) from their winter range. [20] The Antillean subspecies ( T. manatus manatus ) occurs in the Caribbean, South America, and Central America and frequent drowned cays, mangroves, lagoons, and sea grass beds.
The family has one surviving species, the dugong (Dugong dugon), one recently extinct species, Steller's sea cow (Hydrodamalis gigas), and a number of extinct genera known from fossil records. Subcategories
They range in size from the pygmy tarsier, at 8 cm (3 in) plus a 20 cm (8 in) tail, to the Philippine tarsier, at 16 cm (6 in) plus a 25 cm (10 in) tail. Tarsiers are carnivorous and primarily eat insects, though they also consume small vertebrates such as lizards, birds, or bats.
The largest island is Mantanani Besar; the other two are Mantanani Kecil and Lungisan. It is a popular site for recreational diving and is known for its dugongs. [1] The name of the island is a compound of Ubian word "manta" (blanket) and "Nani" (the name of a mighty man who fought the enemies that owned the blanket). [2]
Physiographic world map with mountain ranges and highland areas in brown, pink, and gray. This is a list of mountain ranges on Earth and a few other astronomical bodies.First, the highest and longest mountain ranges on Earth are listed, followed by more comprehensive alphabetical lists organized by continent.