7 Amazing Animals question answer short
Answers
Answer:
1..LARGEST ANIMALS ON EARTH
2.. SMALLEST ANIMALS
3.. BIGGEST BIRD
Explanation:
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Answer:
1. Why Do Some Tigers Have White Coats?
Researchers from China's Peking University have discovered that white tigers owe their unique colouration to a gene mutation in the pigment gene SLC45A2. This gene inhibits the production of red and yellow pigments in white tigers but does not appear to alter black. Like orange Bengal tigers, white tigers have distinctive black stripes.
2. Do Reindeer Really Have Red Noses?
A study published in the BMJ-British Medical Journal reveals why reindeer have red noses. Their noses are abundantly supplied with red blood cells through nasal microcirculation. Microcirculation is the flow of blood through tiny blood vessels.
3. Why Do Some Animals Glow In the Dark?
Some animals can emit light naturally due to a chemical reaction in their cells. These animals are called bioluminescent organisms. Some animals glow in the dark to attract mates, communicate with other organisms of the same species, lure prey, or expose and distract predators.
4. How Do Bats Use Sound to Locate Prey?
Bats use echolocation and a process called active listening to locate prey, typically insects. This is particularly helpful in clustered environments where sound can bounce off of trees and leaves making it more difficult to locate prey. In active listening, bats adjust their vocal cries emitting sounds of variable pitch, length, and repetition rate. They can then determine details about their environment from the returning sounds. An echo with a sliding pitch indicates a moving object.
5. Why Do Some Animals Play Dead?
Playing dead is an adaptive behaviour used by a number of animals including mammals, insects, and reptiles. This behaviour, also called thanatosis, is most often employed as a defence against predators, a means to catch prey, and a way of avoiding sexual cannibalism during the mating process.
6. Are Sharks Color Blind?
Studies on shark vision suggest that these animals may be completely colour blind. Using a technique called microspectrophotometry, researchers were able to identify cone visual pigments in shark retinas. Of the 17 shark species studied, all had rod cells but only seven had cone cells. Of the shark species that had cone cells, only a single cone type was observed. Rod and cone cells are the two main types of light-sensitive cells in the retina.
7. Why Do Zebras Have Stripes?
Researchers have developed an interesting theory as to why zebras have stripes. As reported in the Journal of Experimental Biology, zebra's stripes help to ward off biting insects such as horseflies. Also known as tabanids, horseflies use horizontally polarized light to direct them toward the water for laying eggs and to locate animals.
Explanation:
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