{$mEDiAurl}
ACCorDing to thE proFEssor, whAt FunCtions DoEs ECholoCAtion sErvE For mArinE mAmmAls
ChoosE 2 AnswErs.
A、nAvigAting thEir EnvironmEnt.
B、soCiAlizing in thE poD、
C、iDEntiFying inDiviDuAl whAlEs.
D、DEtECting thE loCAtion oF thEir prEy.