The Unusual Platypus: Discovering its Unique Sex Chromosomes

The platypus is a unique mammal that lays eggs and produces milk. Scientists at the Australian National University discovered it has ten sex chromosomes, unlike other mammals. This research, conducted over 2.5 years, used fluorescent markers to study the chromosomes. Interestingly, the platypus's sex chromosomes link it to birds, challenging previous beliefs that these species evolved independently.

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