鳍足动物

The pinniped surfaced for air, its sleek body glistening in the sun.
这只鳍足类动物浮出水面呼吸，光滑的身体在阳光下闪闪发光。
The rare sight of a harbor seal pup (a type of pinniped) drew a crowd on the beach.
一只海豹幼崽（一种鳍足类动物）的罕见出现吸引了海滩上的人群。
Pinnipeds have adapted to life both in water and on land, making them unique among mammals.
鳍足类动物适应了水中和陆地生活，这使得它们在哺乳动物中独一无二。
The Arctic fox preys mainly on lemmings but also hunts pinnipeds when opportunities arise.
北极狐主要捕食旅鼠，但也会在有机会时猎杀鳍足类动物。
Pinnipeds like seals and walruses have thick layers of blubber to insulate them from the cold water.
像海豹和海象这样的鳍足类动物有厚厚的脂肪层来抵御冰冷的海水。
Researchers tagged several pinnipeds to track their migration patterns and feeding habits.
研究人员给几只鳍足类动物 tagging 来追踪它们的迁徙模式和觅食习性。
The decline in fish populations has led to increased competition between different pinniped species.
鱼类种群的减少导致不同鳍足类物种之间的竞争加剧。
In zoos, visitors can often see otters, which are semi-aquatic pinnipeds known for their playful behavior.
在动物园里，游客经常可以看到水獭，这是一种半水栖的鳍足类动物，以其活泼的行为而闻名。
The oil spill had devastating effects on local pinniped populations, causing many deaths and deformities.
油污泄漏对当地鳍足类动物种群造成了毁灭性影响，导致许多死亡和畸形。
Conservation efforts aim to protect pinniped habitats from human activities that threaten their survival.
保护工作旨在保护鳍足类动物的栖息地，免受威胁其生存的人类活动的影响。