may live and die without ever having contact with humanity. 可以不受人类干扰地生存和死亡
The algae die and the food chain collapses. 藻类死亡 食物链因此崩溃
If they do not eat soon, they and their chicks will die. 如果再不快点吃东西 它们和小企鹅都会死掉
and would quickly die from desiccation out in the daytime heat. 若是在白天的高温下 它们很快就会因为脱水而死
Nearly half of all cubs die in their first year out on the ice. 大约有近一半的幼熊 会在第一年的冰上历险中丧生