コイとフナは、日本で親しまれている淡水魚の代表。コイには口のまわりに４本のひげがあるので、コイとフナは簡単に区別することができます。コイにはのどに、１０円玉も曲げると言われる頑丈な「咽頭歯」とよばれる歯があり、タニシなどをかみくだいてエサにします。
Both of common carp and crucian carp are common freshwater fish in Japan. The common carp can be distinguished from the crucian carp by the four “whiskers” around its mouth. Also, the common carp has a tooth in its throat, it is believed to be strong enough to bend coins; it uses this “Pharyngeal tooth”to crack the shells of river snails and get to the flesh.
