News tagged with age
Past regional cold and warm periods linked to natural climate drivers
Space & Earth / Earth Sciences
Nov 26, 2009 |
3.9 / 5 (17) |
25
Intervals of regional warmth and cold in the past are linked to the El Niño phenomenon and the so-called "North Atlantic Oscillation" in the Northern hemisphere's jet stream, according to a team of climate scientists. These ...
Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
Space & Earth / Earth Sciences
Nov 23, 2009 |
4.5 / 5 (17) |
3
A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, ...
After mastodons and mammoths, a transformed landscape
Space & Earth / Earth Sciences
Nov 19, 2009 |
4.6 / 5 (12) |
1
(PhysOrg.com) -- Roughly 15,000 years ago, at the end of the last ice age, North America's vast assemblage of large animals -- including such iconic creatures as mammoths, mastodons, camels, horses, ground ...
Volcanoes played pivotal role in ancient ice age, mass extinction
Space & Earth / Earth Sciences
Oct 26, 2009 |
4.7 / 5 (15) |
3
(PhysOrg.com) -- Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago.
Squeak, squeak -- can you hear me now?
Medicine & Health / Neuroscience
Nov 09, 2009 |
5 / 5 (1) |
0
What do you get when you cross a mouse with poor hearing and a mouse with even worse hearing? Ironically, a new strain of mice with "golden ears" - mice that have outstanding hearing as they age.
Archaeologists uncover prehistoric landscape beneath Oxford
Other Sciences / Archaeology & Fossils
Nov 04, 2009 |
4.6 / 5 (8) |
0
(PhysOrg.com) -- Archaeologists excavating the former Radcliffe Infirmary site in Oxford have uncovered evidence of a prehistoric monumental landscape stretching across the gravel terrace between the Thames ...
Researchers link health-care debate to risk of dying in US and Europe
Nov 06, 2009 |
4 / 5 (6) |
2
The current health care debate in the United States is complicated. Trade-offs between heath care expenditures, lifestyle choices and life expectancy have been suggested but seldom clearly demonstrated. The U.S. spends on ...
Life's Ancient Island in the Ice
Space & Earth / Earth Sciences
Oct 29, 2009 |
4.6 / 5 (12) |
3
During the last ice age, massive glaciers covered much of our planet. However, a region of Alaska, Siberia and the Canadian Yukon remained ice-free. This region, known as Beringia, supported unique organisms ...
Like mother, like daughter, at least around the eyes
Oct 28, 2009 |
3.3 / 5 (4) |
0
(PhysOrg.com) -- New research suggests the old saying commonly told to husbands-to-be is true, that if you want to know what your wife will look like, look at her mother.
Most babies born this century will live to 100
Oct 01, 2009 |
4.4 / 5 (14) |
3
(AP) -- Most babies born in rich countries this century will eventually make it to their 100th birthday, new research says. Danish experts say that since the 20th century, people in developed countries are living about three ...
Long debate ended over cause, demise of ice ages -- may also help predict future
Space & Earth / Earth Sciences
Aug 06, 2009 |
4.4 / 5 (23) |
63
Researchers have largely put to rest a long debate on the underlying mechanism that has caused periodic ice ages on Earth for the past 2.5 million years - they are ultimately linked to slight shifts in solar radiation caused ...
Peruvian glacial retreats linked to European events of Little Ice Age
Space & Earth / Earth Sciences
Sep 24, 2009 |
4 / 5 (5) |
0
(PhysOrg.com) -- A new study that reports precise ages for glacial moraines in southern Peru links climate swings in the tropics to those of Europe and North America during the Little Ice Age approximately ...
Europe's first farmers replaced their Stone Age hunter-gatherer forerunners
Other Sciences / Archaeology & Fossils
Sep 03, 2009 |
4.1 / 5 (10) |
4
(PhysOrg.com) -- DNA study suggests that further waves of prehistoric immigration are waiting to be discovered. Central and northern Europe's first farmers were immigrants with barely any ancestral ties to the modern population, ...
Wolves lose their predatory edge in mid-life, study shows
Oct 26, 2009 |
5 / 5 (1) |
0
Although most wolves in Yellowstone National Park live to be nearly six years old, their ability to kill prey peaks when they are two to three, according to a study led by Dan MacNulty and recently published ...
Crashing comets not likely the cause of Earth's mass extinctions: new research
Space & Earth / Space Exploration
Jul 30, 2009 |
3.7 / 5 (18) |
14
(PhysOrg.com) -- Scientists have debated how many mass extinction events in Earth's history were triggered by a space body crashing into the planet's surface. Most agree that an asteroid collision 65 million ...
