sirenian mammal การใช้

• "' Steller's Sea Cow "'( " Hydrodamalis gigas " ) is an extinct, large sirenian mammal formerly found near the Asiatic coast of the Bering Sea.
• Of particular note were the only detailed behavioral and anatomical observations of Steller's sea cow, a large sirenian mammal whose global range was confined to the shallow kelp beds around the Commander Islands, and which was driven to extinction within 30 years of discovery by Europeans.