Oceanography
Discovery of sex chromosomes 248 million years ago in octopuses
Scientists have discovered the oldest known sex chromosomes in octopuses and squids from 455 million to 248 million years ago - 180 million years earlier than the previo…
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Scientists have discovered the oldest known sex chromosomes in octopuses and squids from 455 million to 248 million years ago - 180 million years earlier than the previo…
So far, we have always attributed the Y chromosome to the symbol of masculinity. But it turns out this type of chromosome is not as strong and durable as we imagined.
Forget about the Y chromosome - it's time to talk about the X chromosome.
166 million years ago, when the first mammals appeared,
According to experts, if the sex of the child is difficult to identify due to developmental disorders, it is best for parents to wait, should not immediately operate to…