Science Bulletins: Decoding the DNA of Extinct Species
Caves were important refuges for humans and animals that coexisted during the late Pleistocene, the epoch of ice ages that ended 10000 years ago.
American Museum of Natural History
Science Bulletins: Human Heart Muscle Can Self-Repair
Swedish researchers have overturned a long-held belief that heart cells don't regenerate over a person's lifetime. The scientists traced levels of radioactive ...
American Museum of Natural History
Science Bulletins: The Rise of Oxygen
Follow geologists as they hunt for, pickaxe, and test rock samples from the 2.5 billion year old Huronian Supergroup, a sedimentary formation in Ontario, Canada ...
American Museum of Natural History
Science Bulletins: Field Notes from Madagascar
Scientists at the American Museum of Natural History conduct studies all over the world during their annual field seasons. In this episode of "Field Notes," we trek ...
American Museum of Natural History
Science Bulletins: Introducing the Denisovans
New research led by scientists at Germany's Max Planck Institute for Evolutionary Anthropology confirms that a 40000-year-old finger bone and tooth belong to a ...
American Museum of Natural History
Science Bulletins: Survivors of 1918 Flu Still Thwart Virus
The 1918 influenza pandemic was the deadliest ever recorded. At least 50 million people died before the strain mutated and vanished in 1919. Some of the ...
American Museum of Natural History
Science Bulletins: On the Hunt for a Balanced Diet
Biologists had long assumed that predators were more concerned with the quantity of their food than the quality, but a recent study shows that nutritional value ...
American Museum of Natural History
Science Bulletins: Cancer's Evoluntionary Tree
Geneticists can reconstruct the evolutionary history of an organism by analyzing changes in its genetic code that have accumulated over time. Now a team of ...
American Museum of Natural History
Science Bulletins: Acid Oceans
If youre an ocean creature with a hard shell—like a sea urchin, a hermit crab, or a coral polyp—you prefer ocean water with a pH of about 8.2. This chemistry ...
American Museum of Natural History
Science Bulletins: Seeking Spiders—Biodiversity on a Different Scale
Recognizing the tiny species of any ecosystem is hugely important for defining its overall diversity. But miniscule forms of life are often invisible to conservation ...
American Museum of Natural History
Science Bulletins: Ancient Humans Get a Genetic 'Census'
A new analysis of the DNA of modern humans has revealed the population size of our ancestors living 1.2 million years ago: just 18500 adults. Despite the odds ...
American Museum of Natural History
Science Bulletins: Deep-Sea Cephalopods Hide Using Light
Many kinds of octopus, cuttlefish, and squid are masters of disguise. They conceal themselves using chromatophores—specialized skin cells that hold pigment ...
American Museum of Natural History
Science Bulletins: Monitoring Mount Etna—Magma on the Move
Scientists in Sicily are collecting an enormous amount of data to monitor moving magma inside Mt. Etna, one of the most active volcanoes in the world. Nearly a ...
American Museum of Natural History
Science Bulletins: "Hobbit" Study Takes a Step Forward
A recent study of the foot of the tiny extinct "hobbit" shows that this unusual hominid couldn't run easily. The work, which was led by AMNH research scientist ...
American Museum of Natural History
Science Bulletins: When Young Brains Become Social
A brain imaging study from MIT and Yale researchers reveals the neural regions underlying social cognition—the ability to recognize other people's thoughts ...
American Museum of Natural History
Science Bulletins: Invasive Species
It's war in many ecosystems around the world as invasive and native species battle for primacy. Facing the increased exchange of ship ballast water among ...
American Museum of Natural History
Science Bulletins:Tuberculosis's Hidden Strategy
Tuberculosis can linger for years, but usually carries no symptoms. Scientists from the International Center for Genetic Engineering and Biotechnology in India ...
American Museum of Natural History
Science Bulletins: Biologists Push to Save Sturgeon
Sturgeon in the Caspian Sea are being fished nearly to extinction for the luxury of their eggs: caviar. This Bio Bulletin features efforts to protect the fish by ...
American Museum of Natural History
Science Bulletins: Jellies Down Deep
This Bio Bulletin, which features spectacular underwater footage, follows scientists at the Monterey Bay Aquarium Research Institute as they retrieve jellies from ...
American Museum of Natural History
Science Bulletins: Chimps Show Complex Body Language
Apes use complex combinations of gestures and facial and vocal signals to communicate. A new study by scientists at the Yerkes National Primate Research ...
American Museum of Natural History
Meteorites | Live Talk with NHM Scientist
Could the water on Earth possibly have an extra-terrestrial source? NASA and JAXA have both undertaken ambitious missions to asteroids across the solar ...
Natural History Museum
Science Bulletins: New Fossil Show Ancient Disease
Tuberculosis has a long history in humans. While Egyptian mummies a few thousand years old show evidence of the disease, a new fossil find traces the ...
American Museum of Natural History
Science Bulletins: Scientists Map Human Brain Connections
The human brain contains about 100 billion interconnecting neurons, or cells that create and transmit messages. Scientists are just beginning to understand how ...
American Museum of Natural History
Nature's Fury: On Shaky Ground - Learning from the Haitian Earthquake
Ten months after a magnitude 7.0 earthquake flattened huge sections of Port-au-Prince, Haiti, a team of geologists commissioned by the United Nations set out ...
American Museum of Natural History
Science Bulletins: How Did Saturn Get Its Rings?
Astronomers propose a new theory to explain Saturn's unusual rings.
American Museum of Natural History
Science Bulletins: Oil Spill Poses Risks to Gulf Ecosystems
When the Deepwater Horizon offshore oil rig in the Gulf of Mexico exploded on April 20, 2010, it set off an oil spill that may exceed the extent and impact of the ...
American Museum of Natural History
Science Bulletins: Did Climate Change Guide Early Migrations?
An international team of scientists has completed analysis of sediment cores pulled from several African lakes, providing the first long, continuous record of ...
American Museum of Natural History
Science Bulletins: Underwater Microscope Zooms in on Tiny Marine Life
Most plankton are too small to be seen with the naked eye. But despite their size, they are vital in marine and freshwater ecosystems, serving as food for larger ...
American Museum of Natural History
Science Bulletins: Scarlet Macaws Soar in Guatemalan Skies
Fledgling scarlet macaws took to the skies over Guatemala in record numbers this year, thanks to the efforts of researchers and conservationists. During ...
American Museum of Natural History
Science Bulletins: Evolution in Action—Isolation and Speciation in the Lower Congo Region
Central Africa's roiling, rapid Lower Congo River is home to an extraordinary assortment of fish—many truly bizarre. This new video by Science Bulletins, the ...
American Museum of Natural History
Science Bulletins: Tibetans Show Recent Evolution
To understand how the native people of the Tibetan plateau have adapted to their extreme low-oxygen environment, several research teams are comparing the ...
American Museum of Natural History
Science Bulletins: Super- Star of the Universe
A local star is the most massive ever detected.
American Museum of Natural History
Science Bulletins: Bipolar Disorder and the Body Clock
Many body processes operate on 24-hour cycles called circadian rhythms. Triggered by the environmental cue of daylight, circadian rhythms are complex series ...
American Museum of Natural History
Science Bulletins: Early Human Walked Upright
Since a few 6-million-year-old bones of the species Orrorin tugenesis were discovered in Kenya in 2000, scientists have not been certain that Orrorin could walk ...
American Museum of Natural History
Science Bulletins: New Fossils Extend Branches of Family Tree
Interpretation of fossil finds and what they imply about human evolution often mean different things to different scientists. To many, evidence shows that the ...
American Museum of Natural History
Science Bulletins: Neanderthal Genome Sheds Light on Humanity
Neanderthals were our closest relatives. These stocky, heavy-browed humans lived from about 200000 to 30000 years ago in Eurasia and the Middle East.
American Museum of Natural History
Science Bulletins: Lemurs of Madagascar—Surviving on an Island of Change
On the world's fourth largest island, and virtually nowhere else, lives an entire "infraorder" of primates: the three dozen or so lemur species. But Madagascar has ...
American Museum of Natural History
Science Bulletins: Stem Cells Made from Eggs Alone
Stem cells are cells that can develop into virtually any type of body tissue. Evenutally, it may be possible to use stem cells to create healthy tissues to replace ...
American Museum of Natural History
Science Bulletins: Gene Patterns Point to Long Lives
To better understand the biology of healthy aging, the Boston University School of Medicine is studying a unique population of Americans—centenarians, ...
American Museum of Natural History
Science Bulletins: The Transit of Venus
For a handful of hours in June 2012, Venus's orbit carried it directly across the face of the Sun, providing a spectacular backlit view visible from Earth. Only six ...
American Museum of Natural History
Science Bulletins: Sharks—the Present (1 of 2)
Marine biologists in South Carolina head out on the water to catch and tag sharks, and to collect genetic samples that will be analyzed back in the lab.
American Museum of Natural History
Science Bulletins: Amazon People Offer Clues to Heart Health
A long-term study of the Tsimane, a traditional community that lives in the Bolivian Amazon, is offering scientists a new perspective on the risks of heart disease.
American Museum of Natural History
