News tagged with evidence

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Ancient penguin DNA raises doubts about accuracy of genetic dating techniques

Ancient penguin DNA raises doubts about accuracy of genetic dating techniques

Biology / Evolution

created Nov 10, 2009 | popularity 4.7 / 5 (23) | comments 15

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 ...


Giant impact near India -- not Mexico -- may have doomed dinosaurs

Giant impact near India -- not Mexico -- may have doomed dinosaurs

Space & Earth / Earth Sciences

created Oct 15, 2009 | popularity 4.8 / 5 (42) | comments 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

A 200,000-year-old cut of meat

Other Sciences / Archaeology & Fossils

created Oct 14, 2009 | popularity 4.2 / 5 (13) | comments 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 ...


baby, infant, newborn

Study: Cancer may pass from mother to unborn child

Medicine & Health / Cancer

created Oct 14, 2009 | popularity 5 / 5 (2) | comments 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.


Australia discovered by the 'Southern Route'

Biology / Evolution

created Jul 21, 2009 | popularity 3.8 / 5 (9) | comments 1

Genetic research indicates that Australian Aborigines initially arrived via south Asia. Researchers writing in the open access journal BMC Evolutionary Biology have found telltale mutations in modern-day Indian populations that a ...


Pacific tsunami threat greater than expected

Space & Earth / Earth Sciences

created Jul 20, 2009 | popularity 4.3 / 5 (8) | comments 0

The potential for a huge Pacific Ocean tsunami on the West Coast of America may be greater than previously thought, according to a new study of geological evidence along the Gulf of Alaska coast.


Primate archaeology sheds light on human origins

Primate archaeology sheds light on human origins

Other Sciences / Archaeology & Fossils

created Jul 15, 2009 | popularity 4.5 / 5 (12) | comments 1

A University of Calgary archaeologist who is one of the few researchers in the world studying the material culture of human beings' closest living relatives - the great apes - is joining his colleagues in ...


Scientists reveal family tree of 'super-sized lions'

Scientists reveal family tree of 'super-sized lions'

Biology / Evolution

created Mar 31, 2009 | popularity 4.8 / 5 (8) | comments 0

(PhysOrg.com) -- The giant cats that roamed the British Isles, as well as Europe and North America, as recently as 13,000 years ago were lions rather than giant jaguars or tigers, a team led by Oxford University ...


Hippo ancestry disputed: Researchers rebut family tree involving hippos, whales and pigs

Biology / Evolution

created Mar 18, 2009 | popularity 4.5 / 5 (8) | comments 0

Hippos spend lots of time in the water and now it turns out (or researchers argue), they are the closest living relative to whales. It also turns out, the two are swimming in a bit of controversy.


That gut feeling may actually reflect a reliable memory

Medicine & Health / Research

created Feb 08, 2009 | popularity 3.3 / 5 (10) | comments 2

You know the feeling. You make a decision you're certain is merely a "lucky guess."


Sponges

Signs point to sponges as earliest animal life

Biology /

created Feb 04, 2009 | popularity 4.3 / 5 (11) | comments 26

(PhysOrg.com) -- Even Charles Darwin was puzzled by the apparently sudden appearance in the fossil record of a great variety of multicellular creatures — a rapid blossoming known as the Cambrian explosion. ...


Archaeologist Uncovers Evidence of Ancient Chemical Warfare

Other Sciences / Archaeology & Fossils

created Jan 14, 2009 | popularity 4.3 / 5 (13) | comments 0

(PhysOrg.com) -- A researcher from the University of Leicester has identified what looks to be the oldest archaeological evidence for chemical warfare--from Roman times.


First Americans arrived as 2 separate migrations, according to new genetic evidence

Biology /

created Jan 08, 2009 | popularity 4.8 / 5 (13) | comments 4

The first people to arrive in America traveled as at least two separate groups to arrive in their new home at about the same time, according to new genetic evidence published online on January 8th in Current Biology, a Cell ...


'Chicken and chips' theory of Pacific migration

Biology /

created Jul 29, 2008 | popularity 4.4 / 5 (16) | comments 0

A new study of DNA from ancient and modern chickens has shed light on the controversy about the extent of pre-historic Polynesian contact with the Americas.


Research gives new insights into 4 billion year-old meteorites

Research gives new insights into 4 billion year-old meteorites

Space & Earth / Astronomy

created Nov 12, 2009 | popularity 5 / 5 (3) | comments 1

(PhysOrg.com) -- Scientists have gained new insight into the makeup of ancient meteorites called Carbonaceous Chondrites, in research published in the October edition of the journal Earth Science and Planetary Le ...