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0:22
馃數馃敶 Why are some crawfish blue? And why, when you boil them, do they turn red? Crawfish get their color from a mix of natural pigments, including one called astaxanthin鈥攚hich is bright red鈥攁nd others that mask it. In some rare crawfish, there鈥檚 a genetic mutation that causes them to lack the usual dark pigments, so the blue shows through. When you boil them, the heat breaks down those masking proteins, leaving only the red pigment behind. That鈥檚 why even a blue crawfish turns bright red in the
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