企鹅有迁徙的习性，迁徙路程可长达几千英里，因此专家尚不清楚这些企鹅的出处、年龄及种类。
At present experts cannot say where the penguins were from, their age or their species. It is not unusual for some penguin species to migrate thousands of miles.
Ainley和Ballard在本周的《极地生物学》中指出，害怕被捕食已经影响到企鹅的日常活动，甚至它们的迁徙规律。
Fear of predators doesn't just affect the penguins' daily activities, however. It also influences the birds' migration patterns, Ainley and Ballard report this week in Polar Biology.
“在企鹅迁徙的过程中出现在巴西海岸并非不同寻常，但多数时间它们是活着的，”另一位生物学家IsabelleNunes说。
It is not unusual for penguins to show up on the Brazilian coast during their migration, but most of the time, they are alive, said another biologist, Isabelle Nunes.
“在企鹅迁徙的过程中出现在巴西海岸并非不同寻常，但多数时间它们是活着的，”另一位生物学家IsabelleNunes说。
It is not unusual for penguins to show up on the Brazilian coast during their migration, but most of the time, they are alive, said another biologist, Isabelle Nunes.
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