摘 要: | 一Thepenguinisanunusualbirdthatstandsuprightonveryshortlegsandwalksinafunnyandunskillfulway.Penguinscannotflybutareexcellentswimmers.Penguinsliveinthesouthernhalfoftheworld.SeveralkindsliveontheiceofAntarctic.Othersarefoundfarthernorthinareastouchedbycoldseacurrents(流)fromAntarctic.Penguinsarepopularinzoos.Buttheyaredifficulttokeepincaptivity,becausetheycatchdiseaseseasilyanddie.Penguinslosttheabilitytoflymillionsofyearsago.Thickfatkeepspenguinswarmincoldwater.Penguinseatfish.Theyspendmuc…
|