换句话说，鼹钝口螈的变态是一种返祖现象。
In other words, metamorphosis in mole salamanders is an atavism.
墨西哥钝口螈在墨西哥已经濒临灭绝，这是由于栖息地的减少和人类的捕杀。它们被当成是珍馐佳肴，就像是法国人喜欢吃的青蛙腿。
Ambystoma mexicanum is almost extinct in Mexico due to diminishing habitats and human hunting - they are regarded as a delicacy in much the way the French like frogs legs.
墨西哥钝口螈在墨西哥已经濒临灭绝，这是由于栖息地的减少和人类的捕杀。它们被当成是珍馐佳肴，就像是法国人喜欢吃的青蛙腿。
Ambystoma a mexicanum is almost extinct in Mexico due to diminishing habitats and humanhunting - they are regarded as a delicacy in much the way the French like frogs legs.
墨西哥钝口螈在墨西哥已经濒临灭绝，这是由于栖息地的减少和人类的捕杀。它们被当成是珍馐佳肴，就像是法国人喜欢吃的青蛙腿。
Ambystoma a mexicanum is almost extinct in Mexico due to diminishing habitats and humanhunting - they are regarded as a delicacy in much the way the French like frogs legs.
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