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The influence of the XX/XY model of chromosomal sex has been profound over the last century, but it’s founded on faulty premises and responsible for encouraging reductive, essentialist thinking.

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One of the basic properties of life is reproduction, the capacity to generate new individuals, and sex is an aspect of this process. Life has evolved from simple stages to more complex ones, and so have the reproduction mechanisms.

Worst Sex Soundtrack List: 1. Four Incubus singles on repeat for forty minutes. (In the year 2008.) 2. The Hipster B’s: Said a friend who slept with a teen who set her iTunes to play straight through the library starting at Bloc Party: “By the time we got through Bright Eyes, I was relieved to hear Britney Spears.”

The Y chromosome is one of two sex chromosomes in mammals, including humans, and many other s.The other is the X chromosome.Y is the sex-determining chromosome in many species, since it is the presence or absence of Y that determines the male or female sex of offspring produced in sexual reproduction.

Top Ten Sex Toy Patents. If you’ve ever had a great idea for a sexual aid, or wondered where new sex toys come from, you should check out some of the patents on file with the United States Patent Office.

Yearly Top Ten Movies, picked by critics and filmmakers, sorted by year