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Showing stories 101-125 out of 587 stories.
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13-Dec-2012
Darcin helps mice remember where scent marks are
Scent marks, or the odors that mammals leave behind to mark their territory, contain cocktails of chemicals that pass on information about the animal's gender and social status. Animals regularly revisit scent marks to get more information about the creature leaving them, but until now researchers have not known how animals relocate these scent marks days or even weeks after first finding them.

Contact: Science Press Package Team
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

6-Dec-2012
How do moths choose their flowers?
Have you ever wondered how moths know which flowers to visit for nectar? A new study shows that a particular kind of moth -- the hawkmoth -- has specific patterns of brain activity for flower odors that it is naturally attracted to. On top of that, these moths can learn to associate new odors with nectar without forgetting their original, natural preferences, according to researchers.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

29-Nov-2012
Cracked skin and crocodile scales
Researchers have discovered how the scaly skin pattern on crocodile faces and jaws is created, reports a new study in the journal Science.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

22-Nov-2012
On other planets, a new kind of magnesium oxide
Magnesium oxide, one of the simplest minerals on Earth, transforms into liquid metal under certain conditions likely to exist inside giant, Earth-like planets known as "super Earths," reports a new study in the journal Science.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

15-Nov-2012
Rainforest insect hears like a human
The ear of the South American rainforest katydid sits on the insect's hind legs, and it's one of the smallest of all hearing organs. But in other ways, the katydid ear is remarkably similar to the mammalian ear, researchers have discovered.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

8-Nov-2012
Corals signal to gobies, 'come clean me!'
On the reefs of Fiji, corals and goby fish help each other out, a new study shows. The corals offer the gobies food and shelter, and the gobies protect the corals from toxic seaweed.

Contact: Science Press Package
SciPak@aaas.org
202-326-6440
American Association for the Advancement of Science

1-Nov-2012
Studying the solar system's first solids
The first solids to form in our solar system more than four and a half billion years ago were calcium-aluminum-rich inclusions, or CAIs, and round grains called chondrules. They can both be found in meteorites today.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

25-Oct-2012
Early birds of a feather mated together?
The earliest feathers may have served decoration purposes, instead of helping animals to fly, according to a new study.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

17-Oct-2012
How did the moon form?
A giant impact on Earth could have produced a moon chemically similar to Earth, two new studies appearing online in the Oct. 18 issue of Science Express report.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

11-Oct-2012
Black glass in new Martian meteorite
Last summer, a meteorite from Mars plunged into the Moroccan desert. A new study appearing in the Oct. 12 issue of in the journal Science shows that the rock was ejected from the surface of Mars 700,000 years ago.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

4-Oct-2012
Some dinos' teeth rivaled mammals' for plant-chewing
The teeth of duck-billed dinosaurs called "hadrosaurids" were far more complex than those of other reptiles, according to a new study. In fact, they were much more like the teeth of horses, bison or elephants, which are built for grinding tough, gritty plant material, the researchers say.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

27-Sep-2012
Vanishing electronic medical implants
Imagine a biomedical implant (designed to help treat surgical infections or stimulate bone growth, for example), disappearing into the body after it is no longer needed.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

20-Sep-2012
What cheetahs and house cats have in common
The coats and color patterns of many domestic house cats are similar to those of wild cats, like tigers and cheetahs, suggesting that those traits are controlled by the same genes in different species. Now, a new study in Science shows that mutations in two specific genes can lead to the tabby patterns seen in domestic house cats as well as the spots on wild cheetahs.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

13-Sep-2012
Why do mom killer whales live so long?
A new study may help explain why mother killer whales live so long after having children. Most animals must survive on their own once they reach adulthood, yet a new study published in the Sept. 14, 2012, issue of the journal Science shows that the presence of mother killer whales improves the survival of their adult sons, which in turn increases the number of grandchildren the adult sons produce.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

6-Sep-2012
The pollution that grows at night
Nitrogen oxides -- you can call them "Nox" -- are one kind of pollution that comes from burning gasoline and other fuels. They're produced when we drive cars, when we heat our homes, and in many other ways. Scientists have shown that they are involved in chemical reactions in the Earth's atmosphere that are warming up our planet.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

28-Aug-2012
2 stars and 2 planets?
Astronomers have known that, unlike Earth, some planets orbit two stars instead of just one. But now, data from NASA's Kepler spacecraft has revealed a planetary system that consists of two planets orbiting around two stars. The discovery shows that a pair of stars, or a binary star system, isn't limited to just one planet.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

23-Aug-2012
The birthplace of English's first ancestor language
The language you're reading right now, English, is one of the Indo-European languages. These languages make up one of the largest language families in the world and are spoken by people as far apart as Iceland and Sri Lanka.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

16-Aug-2012
Like an octopus, flexible robot can change colors
Researchers have developed a soft, flexible robot that can change colors to blend in or stand out in its environment. The robot is a rubbery, four-limbed machine, with many tiny channels running through it. It's tethered to a control system. Forcing air through the channels makes the machine "walk."

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

9-Aug-2012
Working with our waste
This week, a special issue of Science highlights the complicated issue of human waste. It's far from a glamorous subject, but waste is unavoidable. In fact, depending on one's lifestyle, each of us can generate tons of waste -- from table scraps and old newspapers to broken mp3 players and outdated computers -- over our lifetimes. And if you include all the waste from farms, mines, and industries, the total really begins to skyrocket.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

2-Aug-2012
To fool other birds, cuckoos use multiple disguises
Social learning, or learning from the behavior of others, might play a larger role in animal mimicry -- or the art of disguise -- than researchers ever realized, according to a new study of common cuckoos.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

26-Jul-2012
The bigger the horn, the better the mate
In the past, researchers have generally assumed that super-sized body parts -- like beetle horns, deer antlers, and extra-long bird tails -- were symbols of a male's fitness. Now, a new report has confirmed that these "exaggerated" traits are, in fact, honest signals of male quality. It also demonstrates how the growth of these super-sized body parts may be affected by nutrition and insulin signaling in the body.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

19-Jul-2012
Plants turned on by oxygen levels?
Germ cells are the building blocks of reproductive cells, like sperm and eggs. And in humans, these germ cells are established during the early stages of development and then maintained until an individual is ready to have kids.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

12-Jul-2012
There's still time to save species in the Amazon...
... but the clock's ticking, a new study shows. The Brazilian Amazon is the largest continuous forest on Earth, and it holds more than 40 percent of the world's tropical rainforest.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

5-Jul-2012
What caused an ancient coral catastrophe?
Millions of tiny animals create ocean coral reefs when they create shells for themselves out of a cement-like ooze. These reefs are important because they provide a home for lots of different kinds of sea life. When the reefs get "sick" and the coral stop building, it can be a sign that something major has changed in the ocean.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

28-Jun-2012
Unusual eyes help fish see in the murk
Elephantnose fish are long-snouted, freshwater fish that live in dim, murky environments. Unlike other animals that are adapted to the dark, these fish do have eyes and rely partly on their vision to find their way around.

Contact: Science Press Package
scipak@aaas.org
202-326-6440
American Association for the Advancement of Science

Showing stories 101-125 out of 587 stories.
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Funding provided by the William T. Golden Endowment Fund for Program Innovation at AAAS.