オーストラリアで、とても古いワニの卵の殻の化石が見つかりました。
In Australia, scientists have discovered fossils of very old crocodile eggshells.
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They believe that this species of crocodile lived about 55 million years ago.
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This species of crocodile belongs to the subfamily Mekosuchinae and can grow up to about 5 meters in length.
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This species of crocodile may have hunted prey by jumping down from trees.
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Mr. Archer, the scientist, said, I think this crocodile jumped down from a tree like a leopard and caught its prey.
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The eggshell was discovered in a small town in Queensland.
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Scientists have been studying this area since 1983.
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This discovery may help us understand the body structure and egg-laying habits of ancient crocodiles.
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The crocodiles of the Mekosuchinae subfamily are believed to have gone extinct in Australia about 3,000 years ago.
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Possible causes include the land becoming dry and barren, competition with other animals, and a decrease in food sources.
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Scientists say that this discovery of eggshells is extremely important for understanding the lives and reproductive methods of ancient crocodiles.
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