Life in the Antarctic is tough indeed.The extremely cold temperatures,fierce winds and vast stretches of ice make it a challenging environment for most life forms.But all these creatures come here because the Southern...Life in the Antarctic is tough indeed.The extremely cold temperatures,fierce winds and vast stretches of ice make it a challenging environment for most life forms.But all these creatures come here because the Southern Ocean is one of the richest oceans on Earth.When the continent separated from South America and moved south 30 million years ago,strong currents began to move in circles right around it.展开更多
文摘Life in the Antarctic is tough indeed.The extremely cold temperatures,fierce winds and vast stretches of ice make it a challenging environment for most life forms.But all these creatures come here because the Southern Ocean is one of the richest oceans on Earth.When the continent separated from South America and moved south 30 million years ago,strong currents began to move in circles right around it.
