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Despite a cultural push to be neutral or even indifferent about the sex of their babies, university-educated Canadians overwhelmingly prefer to have a child of their own gender as they unconsciously try to create a “meme” of themselves to live on after they die, a new study suggests.

Fifty or even 20 years ago, the same study of evolutionary biology might have veered heavily in favour of boys — the traditional breadwinners, deemed to be physiologically stronger and with a greater capacity to produce more children and grandchildren. It’s a value that still exists in many parts of the world.

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But the major strides made by women in modern Western society have meant there’s never been a better time to be born a girl —and women are keenly aware of it, said Lonnie Aarssen, a Queen’s University biology professor who co-authored the study with former undergraduate student Michael Higginson.

“It’s interesting to see this emergence just in my lifetime of opportunities for women to break free from that patriarchal subjugation,” he said. “And it’s being expressed as a flip now to actually favouring offspring that have potential to represent copies of themselves because they’re the same gender.”