Kangaroo teeth grow forever—and keep a record of their owner's age and sex
How do you find out the age of a wild animal? For some Australian marsupials, we have discovered you can tell from their teeth.
How do you find out the age of a wild animal? For some Australian marsupials, we have discovered you can tell from their teeth.
Plants & Animals
Jun 22, 2024
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Marsupials are an infraclass of mammals, characterized by giving birth to relatively undeveloped young. Close to 70% of the 334 extant species occur in Australia, New Guinea, and nearby islands, with the remaining 100 found in the Americas, primarily in South America, but with thirteen in Central America, and one in North America, north of Mexico.
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