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News articles about "Fossils"

Diet likely changed game for some hominids 3.5 million years ago

Carbon, carbon
A new look at the diets of ancient African hominids shows a game changer occurred about 3.5 million years ago when some members added grasses or sedges to their menus according to a new study ... - Read More

The Black Sea is a goldmine of ancient genetic data

sea
When Woods Hole Oceanographic Institution WHOI marine paleoecologist Marco Coolen was mining through vast amounts of genetic data from the Black Sea sediment record he was amazed about the variety of past plankton species that ... - Read More

First snapshot of organisms eating each other: Feast clue to smell of ancient Earth

Smell
Tiny 1 900 million year old fossils from rocks around Lake Superior Canada give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like Share This ... - Read More

Rethinking early atmospheric oxygen: Possibility of more dynamic biological oxygen cycle on early Earth than previously supposed

Oxygen, Oxygen, oxygen
A research team of biogeochemists at the University of California Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere arguably the most important biological event in ... - Read More

Geochemical method finds links between terrestrial climate and atmospheric carbon dioxide

Atmospheric
Nearly 34 million years ago   Earth underwent a transformation from a warm high carbon dioxide greenhouse state to a lower CO2 variable climate similar to the modern icehouse world Massive ice sheets grew across ... - Read More

Hydrogen from methane without CO2 emissions?

The production of hydrogen from methane without carbon dioxide emissions is the objective of a project in which KIT is a major partner At KALLA the Karlsruhe Liquid metal Laboratory researchers are setting up a ... - Read More

Huge and widespread volcanic eruptions triggered the end-Triassic extinction

Earth, earth
More than 200 million years ago a massive extinction decimated 76 percent of marine and terrestrial species marking the end of the Triassic period and the onset of the Jurassic This devastating event cleared the ... - Read More

Earth warmer today than during 70 to 80 percent of the past 11,300 years

Earth, earth
Using data from 73 sites around the world scientists have been able to reconstruct Earth's temperature history back to the end of the last Ice Age revealing that the planet today is warmer than it ... - Read More

Reconstruction of Earth climate history shows significance of recent temperature rise

Temperature, Earth, Climate, climate, temperature, earth
Using data from 73 sites around the world scientists have been able to reconstruct Earth's temperature history back to the end of the last Ice Age revealing that the planet today is warmer than it ... - Read More

Researchers find new information about 'Snowball Earth' period

It is rather difficult to imagine but approximately 635 million years ago ice may have covered a vast portion of our planet in an event called Snowball Earth According to the Snowball Earth hypothesis the ... - Read More

Ancient 'Egyptian blue' pigment points to new telecommunications, security ink technology

A bright blue pigment used 5 000 years ago is giving modern scientists clues toward the development of new nanomaterials with potential uses in state of the art medical imaging devices remote controls for televisions ... - Read More

Isotope patterns in ancient volcanic sulfur tell which global cooling episodes were caused by volcanic eruptions

sulfur
Volcanoes are well known for cooling the climate But just how much and when has been a bone of contention among historians glaciologists and archeologists Now a team of atmosphere chemists from the Tokyo Institute ... - Read More

Volcano location: Greenhouse-icehouse key? Episodic purging of 'carbonate capacitor' drives long-term climate cycle

Climate, climate
A new Rice University led study finds the real estate mantra location location location may also explain one of Earth's enduring climate mysteries The study suggests that Earth's repeated flip flopping between greenhouse and icehouse ... - Read More

Studying ice cores from West Antarctica for clues as to why the Earth began to emerge from the Ice Age

Ice
A slice of ice from 17 500 years ago can help scientists figure out how Earth came out of the Ice Age and how climate change can happen in the future according to South Dakota ... - Read More

Climate change clues from tiny marine algae -- ancient and modern

Climate
Microscopic ocean algae called coccolithophores are providing clues about the impact of climate change both now and many millions of years ago The study found that their response to environmental change varies between species in ... - Read More

Tiny fossils hold answers to big questions on climate change: Research explores 12,000 year fossil record

Climate change, Climate change
The western Antarctic Peninsula is one of the fastest warming regions on the planet and the fastest warming part of the Southern Hemisphere Share This See Also Nature Marine Biology Fish Global Warming Climate Oceanography ... - Read More

Great Oxidation Event: More oxygen through multicellularity

Oxygen, Oxygen , Oxygen
The appearance of free oxygen in Earth's atmosphere led to the Great Oxidation Event This was triggered by cyanobacteria producing the oxygen which developed into multicellular forms as early as 2.3 billion years ago As ... - Read More
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