Scientistssmiledasthethreeyoungwhalesswamthroughtheocea...
问题详情：Scientistssmiledasthethreeyoungwhalesswamthroughtheocean,turningover,jumping,andracingoneanotherincirclesaroundtheship.Afterspendingsevenmonthsina60,000gallon(228,000-liter)poolattheNewEngland...