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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.
Unlike those of manatees, the dugong's teeth do not continually grow back via horizontal tooth replacement. [38] The dugong has two tusks which emerge in males during puberty, and sometime later in life for females after reaching the base of the premaxilla. [33] The number of growth layer groups in a tusk indicates the age of a dugong. [39]
This is a list of the mammal species recorded in Canada.There are approximately 200 mammal species in Canada. [1] Its large territorial size consist of fifteen terrestrial and five marine ecozones, ranging from oceanic coasts, to mountains to plains to urban housing, mean that Canada can harbour a great variety of species, including nearly half of the known cetaceans. [2]
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.
Canada's 15 terrestrial ecozones are further subdivided into 53 ecoprovinces, 194 ecoregions, and 1,027 ecodistricts. [13]Canada is characterized by a wide range of both meteorologic and geological regions that are divided into fifteen terrestrial and five marine ecozones, [14] such as the forests of British Columbia and Central Canada, the prairies of Western Canada, the tundra of Northern ...
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 village is a type of incorporated municipality within the majority of the provinces and territories of Canada. As of January 1, 2012, there were 550 villages among the provinces of Alberta , British Columbia , Manitoba , New Brunswick , the Northwest Territories , Ontario , Quebec , Saskatchewan and Yukon .
Prior to the banning of the trade in 1965, dugong oil was a popular Australian product. Brisbane chemists bought it in large quantities and it was also used in the production of cosmetics. Dugong bone, when turned into charcoal, was said to be the best charcoal for sugar refining. A ban on hunting dugongs in Moreton Bay was enacted on 20 March ...