1·Sea urchins are perhaps best known for their armor of spines.
海胆也许最出名的是它们的刺甲。
2·Sea urchins are perhaps best known for their armor of spines.
海胆也许最出名的是它们的刺甲。
3·Rock lobsters prey on sea urchins, and increased rock lobster densities coincided with significant decreases in urchins.
岩石龙虾以海胆为食，而岩石龙虾密度的增加正好与海胆数量的显著减少相吻合。
4·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。
5·Since the disappearance of sea urchins from the waters up the coast of South Florida, many coral reefs there have been smothered by the uncontrolled growth of algae.
自从海胆从南佛罗里达海岸的海水中消失后，那里有许多珊瑚礁被不受控制生长的藻类所扼杀。
6·I found a lot of sea urchins.
我找了很多的海胆。
7·Sea urchins are a constant annoyance.
海胆永远是一个骚扰者。
8·Sea urchins and sea stars are close relatives.
海胆和海星是近亲。
9·Sea otters are the major predators of sea urchins.
海獭是海胆的主要捕食者。
10·Sea urchins have a powerful appetite for kelp.
海胆对于海藻有着极强的食欲。