Our editors scrounged up some truly bizarre facts.
Stories from the coolest day jobs in the world.
Manmade man parts, in case you've lost part of yours to injury, illness, or a congenital condition
Testosterone use is one of the factors contributing to unsatisfactory Pap tests.
A motion capture study explores the range of hip motion required for sexual activities.
The saga of "Semengate"
The technology might allow for mid-life human sex changes with no surgery
Popular Science's fifth annual survey of just how bad it gets
PopSci tackles life's whys, hows and who-dunnits in this Q&A-style; feature
Meet the extraordinary scientists whose innovations are bringing us robot cars, new cures and vaccines, the fastest-ever computer animations, and much, much more
The transcript from our February 2002 infertility chat on America Online.
The jury is out, but the answer always entails a healthy dose of biology and sociology.
Sex isn't nearly as binary as you think it is.
A new study examines "orgasmability" to determine whether it serves a purpose or is just an evolutionary accident
If you cheat on your spouse, you can't yet plead biochemistry in divorce court. But rodent-brain research sheds light on why some lovers stay, some stray.
Or are they just curious?
PopSci attempts to determine, once and for all, which is the superior gender
Early-stage medical studies tend to use more male animals than female ones. That's bad for the human women who ultimately take these drugs.