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Lioness Spotted Nursing a Leopard Cub in Tanzania
It is the first time that a wild cat has been observed “adopting” another species—but the interaction may not have a happy end
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Adorable New Tiger Cub Born at the Zoo Yips at Its Mom on Video
The new Sumatran tiger cub signals a success in efforts to save the critically endangered species
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Gulf of Mexico “Dead Zone” May Grow to the Size of New Jersey This Year
Shrimp and fish may suffer as excess rain and nutrients produce one of the largest oxygen-poor zones to date
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Puppy Pics May Add Spark to Struggling Relationships
A new study asked couples to look at photo streams that paired images of their spouses with pictures of pooches
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350 Years Ago, A Doctor Performed the First Human Blood Transfusion. A Sheep Was Involved
Early scientists thought that the perceived qualities of an animal—a lamb’s purity, for instance—could be transmitted to humans in blood form
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Is Light Pollution Really Pollution?
As countries grow richer, light pollution gets worse–but some are fighting to change that
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‘Mary Had a Little Lamb’ Is Based on a True Story
As a child, Mary Sawyer rescued a lamb. Then it followed her to school one day
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Why Scientists Sent Mouse Sperm to the International Space Station
Back on Earth, a pile of new pups proves that mouse DNA can survive space
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Wild Orangutans Can Breastfeed for Over Eight Years
The primates take a while to wean their young
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Spring Brings a Wave of Baby Animals to the Zoo
Seven different endangered species born so far at the National Zoo and the Smithsonian Conservation Biology Institute
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To Save Desert Tortoises, Make Conservation a Real-Life Video Game
Traditional techniques weren’t working for the raven-ravaged reptile. So researchers got creative
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Infant Dinosaur Found Still Encased in Its Egg Identified as New Species
Research suggests that the embryo belongs to the cassowary-like oviraptorosaurs
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Will This Artificial Womb One Day Improve the Care of Preemies?
A new treatment, tested on lambs, involves letting fetuses mature in fluid-filled sacs
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Endangered Red Wolf Pups Born in Durham
The six puppies are the first born at Museum of Life and Science in 15 years, part of a program to save the wolves which only number about 300
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Two Litters of Adorable Cheetah Cubs Born in One Week
Smithsonian’s cheetah conservation program welcomes the springtime births after careful planning
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Watch a Baby Bald Eagle Hatch in Real Time
Things are getting serious for the world’s most famous bald eagles
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Meet Eight Species That Are Bending the Rules of Reproduction
Spice up your mating life with relationship tips from rock lizards, sharks and water fleas
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Watch a Male Seahorse Give Birth to Hundreds of Babies
Male seahorses are the ones who carry children and give birth. And when they do, they can produce up to 2,000 babies at one time
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Bad News, Pet Lovers: Teacup Pigs Are a Hoax
It’s a descriptor, not the term for a breed of pig, and it’s hurting animals
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Baboons Are Ruthless Reproducers
These monkeys do whatever it takes to pass on their genes, including killing others’ offspring
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