Tinymonitoringdeviceshavebecomeanincreasinglycommonwayf...
問題詳情：Tinymonitoringdeviceshavebecomeanincreasinglycommonwayforscientiststostudyelusiveanimalsthataredifficulttotrackonaday-to-daybasis.However,nowitseemsthatsmart.Sealshavecaughtontothetrickandareu...