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What type of pigment causes a blue whale to be blue?

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The interesting thing about the color blue, is that rarely occurs in nature. This is because to get blue, rather than being a color pigment, it's a structural difference in the cells of the animal that filter out other light wavelengths. read more

Some whales may even be named (partially) after their color, such as the blue whale, gray whale or pink river dolphin. The blue whale (the largest animal in existence) for example is a bluish – gray color, but appears to be purely blue when it is submerged underneath the water. read more

The blue whale (scientifically referred to as balaenoptera musculus) is a large marine mammal that is part of the baleen whale (mysticeti) suborder and is the largest animal alive growing to lengths of up to 100 ft. long and weighing as much as 150 tons or more. read more

A female blue whale can only give birth once at every two years, and to a single calf. Blue whales usually live in cold environments, so they can easily be injured by ice. Even though blue whales shock with their impressive dimensions, they can simply become victims of other inhabitants of the ocean. Blue whales can be hunted by killer whales. Source. 3. read more

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