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Coelacanths
Beginning of essay
are an ancient fish-like vertebrates that first appeared some 350 million years ago, about the time the first creatures emerged from sea to land. In terms of evolution, these ancient "fishes" are more closely related to land animals than to fish. Note the specimen's paired fins. They are lobe- ....
Middle of essay ....rliest fossil almost certainly lived in freshwater, but later they entered the oceans. They probably live in quiet deep waters, coming nearer to the surface at night. are active carnivores; they have many sharp teeth, and they fight fiercely when hooked. have several characteristic features, including a hollow spine in the first dorsal fin (coelacanth is Greek for hollow spined.) They have muscular, limblike fins on the underside of their body. They apparently use these fins as a suppor.... |
Number of words: 373 |
Approximate pages: 2 |
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