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In the 1980s, it was estimated there could be as many as 4,000 dugongs in the Red Sea. Dugong populations in Madagascar are poorly studied, but due to widespread exploitation, it is thought they may have severely declined, with few surviving individuals. [39] [40] The resident population around Mayotte is thought to number just 10 individuals. [41]
Some populations of dugongs, such as the one in Moreton Bay, Australia, are omnivorous, feeding on invertebrates such as polychaetes [48] or marine algae when their supply of seagrasses is low. In other dugong populations in western and eastern Australia, there is evidence that dugongs actively seek out large invertebrates. [39]
There are 78 mammal species in Saudi Arabia, ... Dugong dugon VU; Order: Primates ... including many that are of great economic importance to humans.
There are 244 mammal species in Papua New Guinea, ... Dugong dugon VU; Order: Rodentia (rodents) ... wombats, and many others.
Dugongs. Sirenia is an order of fully aquatic, herbivorous mammals that inhabit rivers, estuaries, coastal marine waters, swamps, and marine wetlands. All four species are endangered. Family: Dugongidae. Genus: Dugong. Dugong, D. dugon VU [3]
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.
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.
1 Order: Sirenia (manatees and dugongs) 2 Order: Primates (primates) 3 Order: Rodentia (rodents) ... There are over 260 species of carnivorans, the majority of which ...