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Ibexes are effectively flattened by countershading, making them nearly invisible against a desert background. There are three in the image. Countershading is observed in a wide range of animal groups, both terrestrial, such as deer, and marine, such as sharks. [17] It is the basis of camouflage in both predators and prey. [18]
The grey reef shark or gray reef shark (Carcharhinus amblyrhynchos, sometimes misspelled amblyrhynchus or amblyrhinchos) [2] is a species of requiem shark, in the family Carcharhinidae. One of the most common reef sharks in the Indo-Pacific , it is found as far east as Easter Island and as far west as South Africa .
Countershading is widely used by terrestrial animals, such as gazelles [94] and grasshoppers; marine animals, such as sharks and dolphins; [95] and birds, such as snipe and dunlin. [96] [97] Countershading is less often used for military camouflage, despite Second World War experiments that showed its effectiveness.
Three main camouflage methods predominate in the oceans: transparency, [5] reflection, and counterillumination. [6] [1] Transparency and reflectivity are most important in the top 100 metres of the ocean; counterillumination is the main method from 100 metres down to 1000 metres; while camouflage becomes less important in the dark waters below 1000 metres. [6]
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Democratic political strategist James Carville, who has been openly critical of the Harris campaign since Democrats’ 2024 election losses, reflected on his failed prediction that Vice President ...
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