Human vaginas don’t have the fantastical loops and blind alleys of a duck vagina, but they still have some pretty amazing shape-changing powers. Here’s how they’re put together, and how that anatomy lets them grow when they need to. »
The Age of Exploration brought Europeans riches, a broader view of the world, and a hell of a lot of new plants and animals to describe. That was heaven for Carl Linnaeus, a young Swedish doctor with a passion for plants. »
Human testes are masters of mass production, spitting out sperm at a rate of 200 million per day. But that doesn’t mean the process is fast–it takes 64 days to make a sperm. The organ keeps the count high with an assembly-line anatomy that scales up sperm development from a trickle to a flood. »
Your spam folder is probably full of the offers. (Mine certainly is.) But none of the emails promising to let you “please your partner” by making you a “giant for girls” with “strong erections” say a thing about how the penis gets erect in the first place. Here’s how it really works. »
When I was in graduate school, I wondered what changes made erectile tissue in the penis shift from its soft and flexible state to its stiff and inextensible state. Then, with the help of some armadillos, I did the research and figured it out. Tell me what you wonder about, and I’ll see whether I can figure it out for… »
People have always wondered about sex, and as literacy became more widespread over the course of the seventeenth century in England, books appeared to feed that curiosity.
Sexual selection doesn’t necessarily just shape sexual anatomy – it can have as profound an effect on the rest of an animal’s body as natural selection does. In both cases, the end result is more babies for animals that look or act a particular way. »
If you were a midwife or a doctor attending childbirths during the 17th century, you might have owned a tiny anatomically correct doll like this one. Carved from ivory by German, French or Italian craftsmen, these tiny anatomical manikins opened to reveal the normal arrangement of human organs, including the lungs,… »
Most of us would rather not think about what happens to our bodies after death. But that breakdown gives birth to new life in unexpected ways, writes Moheb Costandi.
Most of the time, the male Superb Bird of Paradise is a fairly nondescript black bird. But when it tries to attract a mate, it flips its feathers around to create a fluorescent kabuki mask that you’ll never forget. In this video, ornithologist Ed Scholes explains how the bird creates the illusion.
If you've ever wondered what the difference between a Kansas City Strip and a Sirloin was, or where the hell the T in your T-bone came from, this video will help. »
Last year, scientists did the wacky and cool thing of making a mouse brain transparent. Now they've gone and done it to an entire mouse by pumping detergent through its veins. The transparent mouse looks like gross rodent jello (yes, there is a photo), but it's also an incredible new way to study what intact organs… »
Don't worry, what you're looking at isn't exactly real but actually a full replica of fatty tissue in a human body. Not that it makes it any better because that's pretty much how fat looks like inside your body. Which, well, oh my god gross. I don't want a single ounce of this slimy goopy jiggle on my body anymore. »
We've all seen it: That colorful human body, staring blankly ahead in the doctor's office, its stomach skin missing and guts exposed. But have you ever really stepped back and wondered what it took to perfect that anatomical diagram? »
Because unfortunately movie versions of medical textbooks are all too rare, if you're cramming for an upcoming exam on the human skeletal system and the last thing you want to do is spend the night reading, this wonderful $32 tome can be turned into an almost six-foot tall paper skeleton. Nothing beats hands-on… »
A funny thing happened in the field of anatomy during the first half of this year. Researchers found a previously unknown human body part. It's inside the eyeball, and it's very small. At 15 microns thick, the newly discovered layer of material is so small that even calling it a new body part feels inappropriate.… »