urchins

And when the fish were all gone, all anyone ever saw underwater was just acres and acres of sea urchins.

而当鱼类消失的时候，任何人都只能在水下只能看到成片成片的海胆。

Marine invertebrates, sea urchins use their spines to move along the seafloor, and crabs are known to be their natural predators.

海洋无脊椎动物，海胆利用其刺沿着海底，和螃蟹被称为是他们的天敌。

The bright red color of a fire urchin warns predators that its spines are poisonous. Sea otters are the major predators of sea urchins.

火海胆鲜红的颜色警告捕食者它的刺有毒。海獭是海胆的主要捕食者。

These street urchins soon formed into gangs and by the end of the 19th Century Hell's Kitchen became the crime capital of the U. S.

这些街头流浪儿不久就结成了团伙，在19世纪末，“地狱厨房”地区成为美国的犯罪中心。

He defected, he wrote, by offering to source sea urchins from Japan, from where he never returned.

他还写道，他后来向金正日提出到日本买海胆而借机叛逃，并至今还在日本滞留不归。

No corals, no sea urchins and no who-knows-what-else would be bad news indeed for the sea.

没有珊瑚、没有海胆、没有其他未知的无论什么生物对海洋来说的确都是坏消息。

If you dressed one of those urchins in nice clothes and taught him good manners, there wouldn't be a whit of difference!

如果你把这样的小家伙打扮打扮，让他穿上好衣裳，教他礼貌举止，那就不会有任何差异。

for these spines perform the office of hair, and not of feet as is the case with similar parts of sea-urchins.

因为这些刺构成毛团，不是像海胆相同的部位一样用来作为足。

On the sea bed at depths of up to 3, 000ft are vast coral reefs, forests of willowy feather-stars and russet-red sea urchins.

在深达近千米的海底，生长着大片绮丽的珊瑚礁、婀娜多姿的海星和黄褐色的海胆。

He allowed these "enucleated" eggs to be fertilized by sperm from sea urchins of the genus Echinus.

他让这些“无核”的卵跟海胆属的海胆的精子受精。

Dalian sea urchins are unique to the North Hammer, which grows in deep water, shallow color, succulent coarse, has a more rich aroma.

大连海胆有着北方特有的豪迈，它们生长在深深的海水里，颜色较浅，肉质较粗，却有着更为浓郁的香味。

The spiky body of a sea urchin acts as one big, spine-covered eye, confirms a new study that tested how well urchins can see.

海胆是一个浑身带刺的大球体，它身上的棘覆盖了眼睛，科学家们对它做了新的研究，试图了解海胆是如何运用视觉的。

All the sea urchins seemed oblivious to the smaller disks, Johnsen's team found.

约翰森的研究小组发现所有的海胆似乎都对小磁盘无动于衷。

A nontoxic dye highlights water currents surrounding sea urchins off Vancouver Island, British Columbia.

大不列颠哥伦比亚温哥华岛沿岸，无毒的染料包围了一只海胆。

For instance, it appears the ancestor of brainless starfish and sea urchins had a brain.

例如，无脑海星和海胆的祖先似乎曾有大脑。

Remains of more modern corals, diverse pelecypods, sea urchins and ammonoids characterize the marine strata of the Mesozoic ERA.

中生代生物的特征是出现较现代的珊瑚，各种各样的瓣鳃，海胆和菊石。

Carpenter says he looks forward to the day when both urchins and parrotfish share the task of clearing way for baby coral.

卡朋特说：他盼望着有一天，海胆和鹦嘴鱼分担为幼年珊瑚扫清道路的任务。

Though they are commonly called starfish, these animals are not fish at all. They are echinoderms, closely related to sea urchins.

虽然它们通常被称为海星，这些动物不是鱼，它们是棘皮动物，与海胆密切相关。

Green sea urchins, chitons, and sea stars cluster in a tidal pool off Alaska's Aleutian Islands.

绿色海胆、石鳖和海星簇居在阿拉斯加阿留申群岛的潮汐池里。

Sea urchins brandish their spines on the seafloor near the Channel Islands.

海胆在海峡群岛附近的海底挥舞着它们的棘突。