21. This article is about Steller's sea cow , a large sirenian that went extinct in modern times. 22. Wherever sea cows had been feeding, heaps of stalks and roots of kelp were washed ashore. 23. In 2003, Bahrain banned the capture of sea cows , marine turtles and dolphins within its territorial waters. 24. The tree hyrax is a small nocturnal mammal that is distantly related to elephants and sea cows . 25. Steller's sea cow was apparently monogamous. 26. The 16-year-old sea cow was the subject of a study to discover how manatees regulate their body heat. 27. Steller's sea cow , whose habitat was apparently restricted to the kelp-beds around Bering Island, was exterminated by 1768. 28. They, like the fur traders, would have easily hunted the sea cows for their large quantities of meat. 29. Manatees are occasionally called sea cows , as they are slow plant-eaters, peaceful and similar to cows on land. 30. It is an important habitat for the highly endangered sea mammal, the dugon commonly called the sea cow .
