you might not think of seastars is big very intelligent and you'd be right
你可能认为海星很大，很聪明，你是对的
but you might be impressed by some of the amazing things they could do
海星所做的一些奇妙的事情可能会给你留下深刻印象
especially considering they don't have a brain
特别是鉴于这些海星没有大脑的情况下
hi I'm Jonathan bird and welcome to my world
大家好，我是乔纳森·伯德，欢迎来到我的世界
starfish more correctly called sea stars live just about everywhere in the ocean from the tropics to Antarctica and everywhere in between
海星，更准确的说法是海洋之星，它生活在海洋，从热带到南极洲以及其间的任何地方
they come in all shapes and sizes from fat and stubby to long and skinny
海星的形状和大小各有不同，肥硕的瘦长的都有
this brittle star walks with a coordinated effort using its rays like legs
这只海蛇尾用它像腿一样的鳍刺协调地行走
but most sea stars get around using hundreds or thousands of tiny tube feet on their underside
但是大多数的海星都是依靠下肢的微小管足行走
this is a northern sea star living in the coastal waters of New England
这是一颗生活在新英格兰沿海水域的北部海星
and it's a predator it's hunting a scallop
这只海星在觅食，它正在搜寻扇贝
it's a drama played out in slow motion as the sea star moves in for a grip on the scallops shell
海星抓扇贝的动作很慢
but the scallop is not defenseless with a mighty blast of water
但是扇贝对强大的水流冲击并非毫无防御能力
the scallop jets away to safety
扇贝被喷射到安全地带
so the sea star wraps itself around a mussel
海星把自己包裹在贻贝周围
mussels are attached to the bottom and can't get away
贻贝附着在底部，无法逃脱
the sea star uses its strong tube feet with suction cups to pull the mussel open a tiny bit
海星用它强壮的管足和吸爪让贻贝打开一点点
and digests its victim by injecting its stomach inside the mussel
将胃注入到贻贝中消化

picking up the sea star I can see that it has the mussel firmly in its grip
我拿起海星，看到海星牢牢地抓住了贻贝
but not all sea stars feed on mussels and scallops
但并不是所有的海星都以贻贝和扇贝为食
a basket star feeds on plankton in the water
篮状海星以水中的浮游生物为食
it has finally branched arms that act like a net to catch the tiny bits of food floating by
篮状海星的分叉支臂就像一张网，用来捕捉浮游生物
it positions itself to be able to grab as much plankton as possible in the current
篮状海星在水流中捕捉尽可能多的浮游生物
some sea stars eat something even more surprising
某些海星的吃食你绝对意想不到
come take a look exploring a reef in the tropical Pacific
快来热带太平洋的珊瑚礁一探究竟吧
I find a crown of thorns sea star dining on the coral
我发现一只荆棘冠冕的海星正在将珊瑚作为晚餐
this thorny armoured sea star is one of only a few animals that can digest living Coral
这种多刺的海星是少数几种能消化活珊瑚的动物之一
it wraps itself around a coral colony and eats the polyps leaving a dead bleached coral skeleton behind
它将自己覆盖在珊瑚集群上，以珊瑚虫为食，旁边就是吃完珊瑚的白色骨架
here's a healthy colony of plate coil
这是健康的珊瑚集群
and here's one that's been eaten by a crown of thorns
这儿有一块被荆棘冠冕的海星吃掉了
outbreaks of these sea stars have been known to kill entire reefs
众所周知，这些海星爆发会引发整个珊瑚礁的灭亡
carefully picking one up to avoid the sharp and venomous spines
我小心翼翼地拿起，避免碰到它身上尖锐的毒刺
I can see the stomach which the sea star inverts out of its mouth to digest the coral outside of its body
我能看到海星从嘴里倒出胃来消化外面的珊瑚
these sea stars are the second largest in the world growing bigger than a dinner plate
这些海星是世界上第二大海星，个头比餐盘还大
but if you think these are big wait until you see the largest sea star in the world
但如果你认为它们够大，那就等着去看世界上最大的海星吧
to find it I've come all the way to British Columbia
为了找到世界上最大的海星，我千里迢迢来到不列颠哥伦比亚省
I'm looking for the Giant Pacific Sun star and you won't believe the size of this thing
我在寻找太平洋里巨大的太阳之星，你绝对没有见过这么大只的海星