Reproduction
This Bat Uses Its Extra Long Penis Like an Arm While Mating
Serotine bats are the first mammals known to mate without penetration, new research suggests
Wild Female Chimpanzees Go Through Menopause, Study Finds
Until now, menopause had not been documented in wild, non-human animals, except for a few species of toothed whales
Why the National Zoo Is Saying Goodbye to Its Giant Pandas
Staff remain hopeful that members of the threatened species will be back in Washington in the near future
Why 'Hot Springs' Draw the World's Largest Gathering of Deep-Sea Octopuses
Some 20,000 octopuses congregate near an inactive underwater volcano off California's coast, using heat from thermal springs to hatch their eggs faster
Ospreys Breed in Ireland for the First Time in More Than 200 Years
The birds were driven to local extinction in the 18th century, but the new chicks provide hope for a comeback amid reintroduction efforts
Can Peacock Vasectomies Save This Florida Town?
Residents of Pinecrest don't want to kill the colorful birds, but they do want to keep their growing population in check
At the 1939 World’s Fair, Robert Latou Dickinson Demystified Pregnancy for a Curious Public
The gynecologist and sculptor’s “Birth Series” broke barriers, but how do his views on abortion, race and women’s health square with what we know today?
Crows and Magpies Snatch Anti-Bird Spikes to Build Their Nests
Birds in Europe are prying up the metal barbs, meant to repel them from roosting on buildings, and using the devices as nesting material
FDA Approves First Over-the-Counter Birth Control Pill
Experts say the decision will increase access to safe and effective contraceptives for millions of Americans
Scientists Find Rare Deep-Sea Octopus Nurseries
The team captured footage of the eight-armed creatures brooding their eggs in groups near Costa Rica
The 150-Year-Old Comstock Act Could Transform the Abortion Debate
Once considered a relic of moral panics past, the 1873 law criminalized sending "obscene, lewd or lascivious" materials through the mail
Scientists Develop New Birth Control for Female Cats—No Surgery Necessary
The one-time injection of a gene therapy could eventually be used to control cat populations
Scientists Record the First 'Virgin Birth' in a Crocodile
A female American crocodile living in captivity reproduced without a mate—a finding that suggests dinosaurs might have done the same thing
Climate Change Is a Wake-Up Call for Hibernating Squirrels
As spring arrives sooner, female Arctic ground squirrels are emerging from their burrows earlier, according to a new study
Scientists Create 'Synthetic Embryos' From Monkey Cells
By studying lab-grown stem cells, scientists hope to shed light on miscarriages and birth defects
These Male Ants Have Two Separate Sets of DNA
A genetic condition called chimerism may have helped yellow crazy ants become a dominating invasive species, a new study suggests
Cockroach Sex Is Evolving in Response to Pesticides
A new study highlights the insects' resiliency in spite of human attempts to kill them
90-Year-Old Tortoise Fathers His First Offspring at Houston Zoo
Critically endangered radiated tortoises don’t reproduce often, so this is a win for the species
Why Did Scientists Wait So Long to Study the Snake Clitoris?
The delay is representative of a major problem in biology: Female and intersex animals are understudied compared with their male counterparts
How Lunar Cycles Guide the Spawning of Sea Creatures
Researchers are starting to understand the biological rhythms that sync worms and corals to phases of the moon
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