从阿拉斯加东南海岸岛屿的洞穴中提取的化石的放射性碳年代测定法表明，在最后一个冰河时代，该地区至少有一部分保持无冰状态。
Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.
这些地区中的十三个被提名为特别保护区，原因在于这十三个地区拥有重要的生物居住地，著名的珊瑚礁、海岸和海蚀洞穴。
Thirteen of them are nominated as special areas of conservation (SACs) for their important habitats, namely coral reefs, sandbanks and sea caves.
一种没有眼睛而有能注射毒液的牙齿的甲壳类动物，已在北非海岸附近加那利群岛的水下火山洞穴中被发现了。
A species of crustacean with no eyes and venom-injecting fangs has been discovered in an underwater volcanic cave in the Canary Islands off the coast of North Africa.
应用推荐