22 April 2014, 07:09 PM ET
A mysterious duck-like sound recorded in the ocean has baffled scientists for decades, but the source of the sound has finally been found, researchers say.
22 April 2014, 07:01 PM ET
Researchers solve the mystery of the Atlantic sailfish's bill. This oceanic hunter uses its bill to sneak into schools of fish and slash or 'tap' potential prey. The finding reveals an unknown evolutionary solution to overcome the defense of schooling.
22 April 2014, 05:00 PM ET
Pain seems to discourage female mice from having sex, but it does nothing to stop males from copulating, according to a new study.
22 April 2014, 04:08 PM ET
Lars Kindermann and Ilse Van Opzeeland of the Alfred Wegener Institute obtained this sound recording, which – although it sounds like the quack of a mechanical waterfowl – is actually a minke whale.
22 April 2014, 03:48 PM ET
The population of seabirds with characteristically colorful feet has been decreasing. And a lack of sardines in the region may be the culprit.
22 April 2014, 03:40 PM ET
Thanks to a group of stubborn ospreys, a traffic cam watching over the flow of cars in Maryland has become an improvised wildlife cam.
22 April 2014, 01:12 PM ET
A new bug, similar to the common woodlouse, has been found by scientist aboard the RRS James Cook in the deep Southern Ocean. Between 500 – 6,000 specimens littered each square meter of the carcass.
22 April 2014, 11:44 AM ET
As Earth Day arrives, the dusky shark is just one of many animals threatened worldwide — but with a focus on the risks of fishing bycatch, the sharks may yet be saved.
22 April 2014, 10:07 AM ET
An expedition to the islands of Svalbard, Norway, to study how warming temperatures and melting sea ice are impacting Europe's westernmost polar bear population concluded on Monday (April 21).
22 April 2014, 10:04 AM ET
A huge Australian snake bites people who are asleep.
22 April 2014, 04:40 AM ET
From microbes to plants and large predators, every organism on Earth has evolved unique survival mechanisms and research has shown us how this biodiversity can help society.
21 April 2014, 07:10 PM ET
The contents of a whale's stomach reveals more than just its diet.
21 April 2014, 07:07 PM ET
Researchers tested 36 different species on two self-control tasks. In the first, the researchers hid treats in one of several containers. In the second, they hid treats in a transparent cylinder.
21 April 2014, 06:15 PM ET
An extinct species of assassin fly that lived during the age of the dinosaurs has been discovered inside a translucent tomb of amber.
21 April 2014, 05:19 PM ET
Animals with larger brains may have more self-control than creatures with smaller noodles, suggesting that feeding ecology and brain size may have influenced cognitive evolution, researchers say.
21 April 2014, 03:36 PM ET
Scientists discovered a new 100-million-year-old species of assassin fly, Burmapogon bruckschi, after studying the first two specimens ever preserved in Burmese amber.
21 April 2014, 03:00 PM ET
Monkeys can use symbols to add, which sheds light on the evolutionary origins of math, researchers say.
19 April 2014, 10:06 AM ET
Despite some human-like characteristics, elephants' mating behaviors are very different from our own.
19 April 2014, 02:52 AM ET
Do you ever stay up late wondering if there really is a dog?
19 April 2014, 02:30 AM ET
Chickens make lousy house pets (and bunnies take a lot of work) — something to remember at Easter.
19 April 2014, 02:03 AM ET
Sharks and rays are some of the world’s most threatened animals, with a quarter of all species at risk of extinction.
18 April 2014, 03:54 PM ET
PBS's show Nature is featuring animals who have been treated with latest state-of-the-art prosthetics. It premiered April 9th, 2014.
18 April 2014, 10:11 AM ET
Chimpanzees are quite choosy when it comes to their sleeping arrangements, and new research suggests the apes prefer a firm bed made from stiff, resilient wood.
18 April 2014, 09:04 AM ET
When U.S. Navy hospital corpsman Marshall Peters returned from a tour of duty in Kandahar, Afghanistan, in 2010, he couldn't sleep. He felt depressed and anxious, and hated being around crowds or loud noises.
18 April 2014, 09:03 AM ET
Warrior Canine Connection utilizes the healing power of the human-animal bond to help Warriors in recovery from post-traumatic stress and traumatic brain injury.
17 April 2014, 03:37 PM ET
Mountain lion P-22, known for prowling the foothills below the Hollywood sign in Los Angeles, is suffering from mange after ingesting rat poison.
17 April 2014, 02:05 PM ET
Archaeologists discovered animal-printed tile fragments in Blackfriars, Leicester, during excavations in 2014. The artifacts date back to the early Roman era.
17 April 2014, 01:34 PM ET
The paw prints and hoof prints of a few curious animals have been preserved for posterity on ancient Roman tiles recently discovered by archaeologists in England.
17 April 2014, 11:42 AM ET
During copulation, lasting 40 to 70 hours, the female cave inserts her penislike gynosome into the male organ to collect sperm. The female's lengthy penis would be the equivalent of a 5 foot 9 man having a penis about 9.8 inches long.
17 April 2014, 11:15 AM ET
Females with penislike genitals and males with vaginalike organs are cases of a new extreme reversal of sex roles researchers have discovered in little-known cave insects.
17 April 2014, 10:17 AM ET
The toxicity of hobo spider bites to humans has been a matter of scientific debate, but a new study seems to suggest they may not be too toxic after all.
16 April 2014, 06:05 PM ET
A massive great white shark has been spotted swimming close to an Australian beach, scaring the locals and forcing the beach to close.
16 April 2014, 05:00 PM ET
A new species is the oldest and smallest of an ancient group of mammal ancestors, the caseids. The discovery helps fill in the blanks of evolution from a carnivorous to herbivorous lifestyle.
16 April 2014, 03:43 PM ET
Goats might be smarter than one would think, as they can quickly learn and remember how to perform certain tasks, a new study suggests.
16 April 2014, 03:13 PM ET
A group of researchers discovered a dead nose-horned viper with a centipede's head sticking out of its ruptured abdomen. After a post-mortem, the scientists think it's possible that the centipede quite literally eviscerated the snake from the inside out.
16 April 2014, 01:00 PM ET
Sharks are usually thought of as primitive creatures, sometimes called "living fossils." But a new study of a 325-million-year-old shark fossil — the most complete of its kind — suggests modern sharks have evolved significantly from their bony ancestors.