“It was like rolling the dice, except for someone you’ve never met.”
Amid the pandemic, I.V.F. rates are on the rise, and so are disputes about what to do with remaining frozen embryos when couples split up. For some, it has gotten messy.
In “Count Down,” Shanna Swan tells a story of declining sperm count, rising infertility and the possible extinction of the human species.
Scientists are concerned by falling sperm counts and declining egg quality. Endocrine-disrupting chemicals may be the problem.
Males and females of a species that mates monogamously complete their bond by gnawing off each other’s wings, a new study found.
Conservationists confirmed that a Swinhoe’s softshell turtle found in Vietnam is female, reigniting hope for saving the species.
Scientists were surprised to find the insect’s preserved penis, which suggests it was an unknown species.
This cloaca is more than 100 million years old, and it did a lot of work for this extinct species.
A team of scientists say they have figured out the cicada-like life cycles of the many-legged arthropods.
Nature’s weirdest clam surprises scientists once again, this time in video footage of its mating habits.
Many people want a pandemic baby, but some sperm banks are running low. So women are joining unregulated Facebook groups to find willing donors, no middleman required.
A surprise clutch of eggs has solved a century-old leaf insect mystery.
Wrinkle-faced bats incorporate whistles, wing flaps and furry masks into their mating rituals, researchers have found.
These male monkeys lived longer if they socialized with females, with or without benefits.
Two recent research efforts looked into the southern alligator lizard, which has one of nature’s more extreme mating strategies.
While many fossils have been flattened by time and the elements, a titanosaur found in an egg was preserved in three dimensions.
On occasion, different species of angelfish produce hybrid offspring even more colorful than the parents.
A Brazilian frog species engages in reproductive behavior never seen in amphibians before.
We’re on the cusp of a technological revolution in baby making. What it means to be a family could be next.
For service members like me, Tricare health insurance and the limited number of military medical facilities offering fertility treatments add more stress to an already emotional process.
Commingling tissues and blood would normally prompt a massive immune response. These deep sea lovers found a workaround.
Many mammals that have loud calls to deceive other animals seem to have a particular learning style in common.
American paddlefish and Russian sturgeon were not supposed to be able to create hybrid offspring. Surprise!
Unlike vertebrate embryo cells, which signal to each other over long distances, sea squirt embryo cells talk only to those they’re closest to.
Six households weighed the risks of conceiving and carrying a child during the coronavirus outbreak, each balancing their concerns against an uncertain future.
The large reptiles make decoy nests to distract predators during an oft-ignored behavior following their egg laying, researchers say.
How climate change is altering nature’s sonic landscape.
Four reproductive tales from the animal kingdom, where sealing the deal doesn’t always turn out so great for one partner.