- 问题详情:Bluewhalesarethelargestanimalseverknowntohaveexistedontheplanet,andtheycangrowtoalengthof100feetandweighmorethan330,000pounds.Butrecentlyresearchershavefoundthatthesewhalesareonthemoveandtheyhavemigrated(moved)fromCaliforniawaterstoareasoffCa...
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