Science Bulletins: Whales Give Dolphins a Lift
Many species interact in the wild, most often as predator and prey. But recent encounters between humpback whales and bottlenose dolphins reveal a playful ...
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: 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: Curiosity Rover Heads for Mars
The biggest and most technically advanced rover to date is on its way to Mars. In the latest Astro Bulletin from the Museum's Science Bulletins program, follow ...
American Museum of Natural History
Science Bulletins: Shrinking Glaciers—A Chronology of Climate Change
Analysis of Earth's geologic record can reveal how the climate has changed over time. Scientists in New Zealand are examining samples from the rocky ...
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: 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: Deadly Larvae Lure Predators
Amphibians that try to feed on the larvae of the Epomis beetle will find that they've bitten off more than they can chew. Rather than avoiding its predators, the ...
American Museum of Natural History
Science Bulletins: Zircons—Time Capsules from the Early Earth
Zircons are tiny crystals with a big story to tell. Some of these minerals are the oldest Earth materials ever discovered, and therefore yield clues about what the ...
American Museum of Natural History
Science Bulletins: Skull X-Rays Reconstruct Extinct Carnivores’ Bite
Some carnivores eat only meat, while others are more omnivorous. To understand how and when these differences in carnivore feeding may have evolved, ...
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: 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: Autistic Brains Show Visual Dominance
After examining brain-mapping studies of hundreds of autistic people, scientists from the University of Montreal in Canada and Massachusetts General Hospital ...
American Museum of Natural History
Science Bulletins: GRAIL Spacecraft Ready to Map the Moon
NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission has put a pair of nearly identical spacecraft in orbit around the Moon. By using radio waves to ...
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: "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: 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: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: 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
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
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: 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: 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: Super- Star of the Universe
A local star is the most massive ever detected.
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
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: 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: Supernova of a Lifetime
A recent stellar explosion in a nearby galaxy gave astronomers a rare glimpse into the early stages of a supernova. Supernova PTF 11kly is only 21 million ...
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: Early Migration for Modern Humans
When did modern humans make their first appearance in Europe? A jawbone excavated in England and two molars found in southern Italy suggest that modern ...
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: Full Gene Set Decoded for Three More People
In June 2000, scientists triumphantly announced they had deciphered the full human genome—the 3.2 billion units of DNA that make up the blueprint for human ...
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: 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: 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
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: 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: 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
