More than 1,000 species of iguanas exist around the world. Now, research shows that most of these species share the same sex chromosomes that they inherited from a common ancestor as long as 140 million years ago when dinosaurs lived.
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Iguanas Have Oldest Reptilian Sex Chromosome
More than 1,000 species of iguanas exist around the world. Now, research shows that most of these species share the same sex chromosomes that they inherited from a common ancestor as long as 140 million years ago when dinosaurs lived.
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