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Nov 15, 2024 · dugong (Dugong dugon) Dugongs (Dugong dugon) range in length from about 2.2 to 3.4 metres (7 to 11 feet) and weigh 230 to 420 kg (500 to 925 pounds). (more) Dugongs range in length from about 2.2 to 3.4 metres (7 to 11 feet) and weigh 230 to 420 kg (500 to 925 pounds). As with whales and dolphins, the dugong has a tapered body that ends in a ...
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.
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 ...
Superclass Gnathostomata jawed vertebrates. Gnathostomata: pictures (15163) Gnathostomata: specimens (6827) Gnathostomata: sounds (709) Euteleostomi bony vertebrates. Euteleostomi: pictures (15026) Euteleostomi: specimens (6826) Euteleostomi: sounds (709) Class Sarcopterygii lobe-finned fishes and terrestrial vertebrates.
- Dugong vs. Manatee
- Slow-Moving and Slow-Growing
- Using Hair to See
- Big Boned
- Silent Predators
Dugongs are easily distinguished from manatee species by their dolphin-like tail, whereas manatees have hind fins more similar to a seal or walrus. They also have other specific adaptations such as a down-turned snout that allow it to feed specifically on seagrass with its unique, peg-like molar teeth.
Much like they move, dugongs also grow slowly. Females give birth to just one calf after a year-long pregnancy. Her young will remain close to her for up to 18 months. Because of their long life span (70 years) and slow reproduction rates, dugong populations are vulnerable despite legal protection. Humans have hunted dugongs for thousands of years,...
Dugongs have poor eyesight but good hearing. They are also covered head to tail with short hairs. These hairs are most concentrated around the mouth and are thought to help them navigate the seagrass beds, much like dogs and cats use their whiskers as a navigational aid.
Dugong bones have almost no bone marrow inside and are very solid. In fact, dugong bones are among the densest in the entire animal kingdom. These may act as a type of ballast, allowing the animal to remain effortlessly suspended just below the surface of the water when resting. Sometimes, they will rest their tail on the bottom to anchor themselve...
Although adult dugongs have few predators due to their size, they are quite susceptible to pathogens including helminths, cryptosporidium, and other bacterial and parasitic infections. In fact, in Queensland, Australia, up to 30% of dugong deaths are due to disease. Even still, the biggest threat to dugongs is habitat loss and death at the hands of...
- Shawn Laidlaw
- Sirenia
- Mammalia
- Chordata
15. They can hold their breath for over 10mins. Dugong’s need to breath in oxygen from the surface, and then they are able to hold their breaths for up to 11mins at a time and can dive as deep as 33 meters to feed on the sea bed. 16. They may have been the inspiration for mermaid legends.
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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 ...
