Pinnipedia

例句：

1. 1. The Pinnipedia is a mysterious creature that lives in the deep ocean.
   皮尼迪亚是一种神秘的生物，生活在深海中。
2. 2. The Pinnipedia has been discovered on Earth, but its true origins remain a mystery.
   皮尼迪亚已在地球上被发现，但其真正的起源仍是一个谜。
3. 3. The Pinnipedia is known for its unique adaptations to living in the deep sea.
   皮尼迪亚以其独特的适应深海生活的特质而闻名。