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象齒生長與發育

, their incisors can grow to a length of 3m. Apart from their huge incisors, the elephants' cheek teeth.....more

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, meaning that the teeth can be divided into incisors, canines, premolars and molars depending.....more

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the Triassic Period. Their ancestors can be traced back to a group of mammal-like reptiles that emerged.....more

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and behavior. Paleontologists can use these features to classify each mammal and study how they relate.....more

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of precious fossils they left behind offer important clues and evidence that we can use to study.....more

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. The adult Aepyornis can grow to about 3 meters high, and weighs as much as half ton; it is the largest.....more

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tropical and subtropical regions. In the Pacific Ocean, they can be distributed as north as Japan.....more

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