What are the 4 adaptations?
Evolution by natural selection
- Behavioural – responses made by an organism that help it to survive/reproduce.
- Physiological – a body process that helps an organism to survive/reproduce.
- Structural – a feature of an organism’s body that helps it to survive/reproduce.
How do dugongs protect themselves?
For an animal often unflatteringly referred to as a sea-pig, the dugong’s portliness is its main defence. The thickest part of its body is the back, where there is more blubber. This means the animals protect themselves from predators, such as sharks, by simply turning their backs on them.
What are examples of adaptations?
Adaptation is the evolutionary process where an organism becomes better suited to its habitat. An example is the adaptation of horses’ teeth to grinding grass. Grass is their usual food; it wears the teeth down, but horses’ teeth continue to grow during life.
What are the 5 categories of adaptation?
The five categories of the adaptations are migration, hibernation, dormancy, camouflage, and estivation. The migration can be defined as the phenomenon of the movement of the animals from one region to another in order for their survival.
How do dugongs survive?
Dugongs graze on underwater grasses day and night, rooting for them with their bristled, sensitive snouts and chomping them with their rough lips. These mammals can stay underwater for six minutes before surfacing. They sometimes breathe by “standing” on their tail with their heads above water.
How do dugongs help the environment?
Wherever they survive, dugongs play an important role in maintaining coastal ecosystems. Their constant browsing of seagrass encourages regrowth – ensuring critical habitat and feeding sites for a host of other marine species, including turtles, dolphins and sawfish.
How does a dugong adapt to its environment?
Dugongs have some adaptations that help them to survive: The upper lip is covered in bristles to help find and eat sea grass Their nose is at the top of their head so that they can have as much of their body in water when they come up for water The eyes and ears are on the side of their head so that they can see potential predators
Which is the only living member of the Dugong family?
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 the only strictly herbivorous marine mammal .
Where does a dugong go in the winter?
Research and tracking of dugongs have shown that Dugongs travel over 100km to warmer part of that bay during winter and then eventually return to their original bays during the warmer seasons. Reproduction of dugongs occur and change depending on the location of each herd.
How big does a dugong sea cow get?
The dugong is called a sea cow because it basically feeds the same way as a regular cow. The dugong will graze on underwater grasses by digging them up with their snout. The sea cow can grow to about 3 meters (6′) long and weigh up to 300 kg (600 lbs).
