Sex

Among humans and other mammals, males typically carry XY chromosomes, whereas females typically carry XX chromosomes, which are a part of the XY sex-determination system.

Other animals have a sex-determination system as well, such as the ZW sex-determination system in birds, and the X0 sex-determination system in insects.

With dating apps, bread-crumbing, ghosting, moonlighting and all of the complicated scenarios playing out in our modern culture, things can get confusing when it comes to sex and dating.

Deciphering this can seem impossible, so I’m here to break it down for you.

Life has evolved from simple stages to more complex ones, and so have the reproduction mechanisms.

Gametes can be identical in form and function (known as isogamy), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist (known as anisogamy).

Sex headaches can occur in clusters or out of the blue.

Some people have to deal with them often, and for others, they only happen once a lifetime, according to Mayo Clinic.

There is nothing worse than falling for a guy who is only interested in spending time with you between the sheets.

As a professional matchmaker, I see the underbelly of the dating scene.

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    In biology, incidents of promiscuity in species that form pair bonds are usually called extra-pair copulations.