Reproduction
Sex Evolved Because It Protects Against Rare Contagious Cancers: Scientists
Scientists hope their theory could one day pave the way for new ways to prevent cancer.
Baby Jumping Spiders Suckle Milk From Their Mothers
Female jumping spiders produce fluid with four times the amount of protein found in cow's milk.
Bee With Two Fathers and No Mother Discovered
Scientists also documented bees that had three fathers and one mother.
Two Texas Women Carry One Baby in World First Procedure
"Nobody really knew it was possible—but it worked magnificently," the couple's fertility doctor said.
Good Gorilla Fathers Are More Reproductively Successful
This remained true even when the gorilla cared for kids that weren't his own.
Chinese Scientists Create Mice With Same-Sex Parents
The research could one day be used to help human same-sex couples reproduce.
Armpit Sniffing Study Reveals Secrets of Female Scent
Scent is thought to play an import role in who we find attractive.
Male Brown Widow Spiders Prefer Cannibalistic Females
Researchers suggest that the older females may be seducing the males with pheromone signals.
Having Children Literally Shortens Women's Chromosomes
The data for this study was actually collected nearly 20 years ago as part of a regular federal survey.
This Athlete's Foot Fungus May Be Cloning Itself
New research found that the fungus shows signs of asexual reproduction.
Rare Whale Placenta Spotted Off Hawaiian Coast
Researchers weren't able to DNA test the placenta to confirm that it was a humpback's.
Tri-Sexual Worms Use Bizarre Genes to Help Them Survive
This particular species of worm, Auanema rhodensis, has three possible sexes: male, female and hermaphrodite.
Eggs Get A Choice Of Sperm In Sea Urchin Sex
The process can lead to the creation of whole new species.
Male Flies Find a Mate With Wedding Gifts Made of Vomit
Some of this behavior may sound familiar.
Fish Sex: Singing Males Get All the Ladies
Noise pollution is getting in the way of these fish's mating rituals.
Older Dads Give Risky Genes to Babies More Than Moms Do
As they age, fathers pass on more genetic mutations to their offspring than mothers.
Brains and Grandchildren Drove Evolution of Menopause
Long-standing debate of why women become infertile many years before death edges ever closer to being solved.
Dolphins Do It Better
The intricate design of female dolphin anatomy has been a puzzle to biologists who study reproduction. But new research shows how this design may allow females to control which males win the fertilization prize.
Female Dragonflies Fake Death to Avoid Sex
Scientists observed female dragonflies stopping mid-air, falling to the ground and lying motionless until the male had gone.
Male Contraceptive Pill: What's Really Holding it Back?
Side effects, drugs companies and societal roles all play their parts in holding back alternative forms of birth control.
Fathers Can Pass Down Traits Through Sperm
A new study suggests a father has a lasting impact on whether or not his child is overweight.