News tagged with evidence
Ancient penguin DNA raises doubts about accuracy of genetic dating techniques
5 hours ago |
5 / 5 (8) |
2
Penguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches have been ...
Snail fossils suggest semiarid eastern Canary Islands were wetter 50,000 years ago
Space & Earth / Earth Sciences
Oct 27, 2009 |
2.5 / 5 (2) |
0
Fossil land snail shells found in ancient soils on the subtropical eastern Canary Islands show that the Spanish archipelago off the northwest coast of Africa has become progressively drier over the past 50,000 years.
Like a hungry teen, life on Earth had big growth spurts
Space & Earth / Earth Sciences
Oct 27, 2009 |
3.6 / 5 (7) |
8
Twice in the Earth's history, living creatures underwent astonishing growth spurts, and each time, new organisms emerged that were a million times larger than anything that had existed before.
Nepotism has its benefits when it comes to survival
Oct 26, 2009 |
4.5 / 5 (6) |
0
While nepotism may have negative connotations in politics and the workplace, being surrounded by your relatives does lead to better group dynamics and more cooperation in some animals. That certainly seems ...
Giant impact near India -- not Mexico -- may have doomed dinosaurs
Space & Earth / Earth Sciences
Oct 15, 2009 |
4.8 / 5 (41) |
15
A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 ...
A 200,000-year-old cut of meat
Other Sciences / Archaeology & Fossils
Oct 14, 2009 |
4.2 / 5 (13) |
1
Contestants on TV shows like Top Chef and Hell's Kitchen know that their meat-cutting skills will be scrutinized by a panel of unforgiving judges. Now, new archaeological evidence is getting the same scrutiny ...
Study: Cancer may pass from mother to unborn child
Oct 14, 2009 |
5 / 5 (2) |
0
(PhysOrg.com) -- A new study has provided genetic evidence for the first time that it is possible for a mother to transmit cancer to her unborn child via the placenta.
Forensics firm builds on genomic discovery to advance DNA-based identification
Oct 13, 2009 |
not rated yet |
0
High-tech forensics firm, Casework Genetics is applying new technology to forensic evidence enabling law enforcement labs to solve crimes with greater molecular precision and efficiency than ever before.
Re-examining Darwin’s thoughts on species
Oct 01, 2009 |
5 / 5 (2) |
1
James Mallet is out to rehabilitate Charles Darwin’s reputation on species. It may seem strange that such a founding father of modern biological thought as Darwin could run afoul of something so basic, but ...
Rediscovering the dragon's paradise lost
Other Sciences / Archaeology & Fossils
Sep 30, 2009 |
4.8 / 5 (4) |
2
The world's largest living lizard species, the Komodo dragon (Varanus komodoensis), is vulnerable to extinction and yet little is known about its natural history. New research by a team of palaeontologists and ar ...
'Hitler' skull belonged to woman: scientists
Other Sciences / Archaeology & Fossils
Sep 29, 2009 |
3.7 / 5 (7) |
4
A skull fragment thought to come from Adolf Hitler is in fact that of an unidentified woman, according to a US study that has resurrected questions about the Nazi leader's death.
Getting a leg up on whale and dolphin evolution
Sep 24, 2009 |
4.3 / 5 (7) |
0
When the ancestors of living cetaceans—whales, dolphins and porpoises—first dipped their toes into water, a series of evolutionary changes were sparked that ultimately nestled these swimming mammals into the ...
Nanotube risk assessment
Nanotechnology / Bio & Medicine
Sep 18, 2009 |
3.8 / 5 (4) |
0
Italian scientists suggest that we need a much more detailed toxicological approach to hazard assessment before judgement regarding the long-term safety of carbon nanotubes can be made. They outline their results in the International Jo ...
Fake video dramatically alters eyewitness accounts
Medicine & Health / Psychology & Psychiatry
Sep 14, 2009 |
5 / 5 (5) |
1
(PhysOrg.com) -- Researchers at the have found that fake video evidence can dramatically alter people's perceptions of events, even convincing them to testify as an eyewitness to an event that never happened.
Weeds that reinvented weediness
Sep 03, 2009 |
not rated yet |
0
Flowering plants are all around us and are phenomenally successful—but how did they get to be so successful and where did they come from? This question bothered Darwin and others and a paper published in the September issue ...
