It's estimated that literally less than 100 vaquita remain.

据估计，目前只剩下不到一百头小鼠海豚。

This has never been done before, and it's not easy because the vaquitas are shy.

之前从未这样做过，而且这也不容易做到，因为加湾鼠海豚非常害羞。

On Friday, it was announced that there are only an estimated 60 the vaquita porpoise left.

墨西哥政府于周五表示，预计小头鼠海豚数量仅为60头。

It says the vaquita porpoise found in Mexico's Pacific coast is on the verge of extinction with only around ten animals still surviving.

该组织称，在墨西哥太平洋沿岸发现的加湾鼠海豚濒临灭绝，目前只有大约 10 只存活。