Tiger sharks still turn up in Hawaiian waters, drawn here by another great ocean wanderer. These black-footed albatross are certainly an endangered species, but not because of the sharks. Thousands of adult black-footed albatross are caught each year on fishing lines. In fact, 19 of the world's 22 species of albatross are endangered or vulnerable to extinction, largely thanks to fishing. The Antipodean, or wandering albatross is found in the waters around New Zealand, home to the most diverse seabird community in the world. These are rich fishing grounds for fishermen too. The birds know that where there are fishermen, a free lunch is sure to follow. So how does this get them into trouble? With a wingspan over three metres, an albatross is built to soar thousands of miles across the ocean in its quest for food. As it might go for days with nothing, it can't afford to be choosy. Anything near the surface is snapped up. Unfortunately, not everything a fisherman casts overboard is a healthy meal. 夏威夷水域仍有虎鲨出没,它们是受另一群海洋漂流者吸引而来。黑足信天翁无疑是濒临灭绝的物种之一,但罪魁祸首不是鲨鱼。每年有上只成年的黑足信天翁困在钓鱼线上。事实上,世界上22种信天翁中有19种濒于灭绝或面临高危,主因都是渔业。这种澳洲信天翁栖息在新西兰附近的海域,这里是全世界海鸟种类最多元的地方。同时也是资源丰富的捕鱼场。海鸟知道,有渔夫的地方必有大餐。这又是如何威胁到它们的呢?信天翁双翅展开长达3米,能够在海面上飞越几千里觅食。有时可能几天找不到食物,因此它们不能太挑剔。它们捡食浮在海面上的所有东西。很不幸,渔夫丢下船的并非都是健康的大餐。