无齿海牛是在被发现27年后便遭灭绝(1854年于白令海峡)。

Cowfish with no teeth extincted 27 years later since it was found (Bering Strait, 1854).

youdao

无齿海牛是在被发现27年后便遭灭绝(1854年于白令海峡)。

Cowfish with no teeth extincted 27 years later since it was found (Bering Strait, 1854).

youdao