Sentences with phrase «extinction of the dinosaurs»

This discovery can help scientists learn more about how the modern world came about after the mass extinction of the dinosaurs.

The mass extinction of the dinosaurs was down to the location of the asteroid's impact and the kind of rocks it landed on.

They are often called house cats when kept as Epoch: Years: Notes: Paleocene: 58 to 64 million years ago: Began with extinction of dinosaurs.

Nobody contests the mechanism of evolution, i.e. natural selection, and nobody contests that some kind of mass extinction of dinosaurs occurred (the reason is disputable).

Insects, Disease and Death in the Cretaceous,» George and Roberta Poinar argued that insects carried diseases that contributed to the widespread extinction of the dinosaurs around the «K - T boundary» about 65 million years ago.

Its creation coincides with the mass extinction of the dinosaurs and it contains high levels of iridium, an element found in asteroids.On top of the food chain, they had few....

The extinction of dinosaurs is based on the assumption that they all disappeared prior to humans, and that something catastrophic had to have happened to wipe them ALL out.

A conceivable cause of the extinction of the dinosaurs is the impact of some large extraterrestrial body upon earth.

The last time mammal communities looked like that and had a mean body size that small was after the extinction of the dinosaurs.

«When I took the remaining set of calibrations, the major diversification of placental mammals coincided with the extinction of dinosaurs,» Dr Phillips said.

«It now appears that the major diversification of placental mammals closely followed the extinction of dinosaurs 66 million years ago, an event that would have opened up ecological space for mammals to evolve into.»

Our ancestors evolved three times faster in the 10 million years after the extinction of the dinosaurs than in the previous 80 million years, according to UCL researchers.

An unthinkably large number of quantum events would need to be fixed to steer all of those atoms toward Earth in a way that would have led, say, to the extinction of the dinosaurs.

The extinction of the dinosaurs is therefore not — as science frequently assumes — due to the impact of the Chicxulub asteroid that struck Earth more than 65 million years ago.

The extinction of the dinosaurs allowed our distant mammalian ancestors to start foraging during the day for the first time — and shaped our early evolution

Researchers have found signs of fault displacement at well - known rock outcrops in Colorado that mark the end - Cretaceous asteroid impact that may have hurried the extinction of the dinosaurs.

Heather Birch, a Cardiff University PhD from the School of Earth and Ocean Sciences who led the study, said: «The global catastrophe that caused the extinction of the dinosaurs also devastated ocean ecosystems.

And the events recorded in this suite of sedimentary rock suggest that the common explanation for the extinction of the dinosaurs — a massive asteroid impact — doesn't fully account for their undoing.

And in previous work, Poinar and his wife, Roberta, implicated malaria and the evolution of blood - sucking insects as disease vectors that could have played a significant role in the extinction of the dinosaurs.

Soot is a strong, light - absorbing aerosol that caused global climate changes that triggered the mass extinction of dinosaurs, ammonites, and other animals, and led to the macroevolution of mammals and the appearance of humans.

«It documents that transition from the early mammals we see after the extinction of the dinosaurs to Eocene mammals, which are in groups that are familiar today.

And a large impact may have caused the extinction of the dinosaurs 65 million years ago.

Subjects include the extinction of the dinosaurs and the Orbiting Carbon Observatory.

That's because the flowering plants on which we ultimately rely for nearly all our food came into dominance along with winged insects just after the extinction of the dinosaurs 65 million years ago.

Elis Newham, PhD student in Engineering and the Environment and co-author of the study, which is published Proceedings of the Royal Society B, said: «The traditional view is that mammals were suppressed during the «age of the dinosaurs» and underwent a rapid diversification immediately following the extinction of the dinosaurs.

New research reports that, contrary to popular belief, mammals began their massive diversification 10 to 20 million years before the extinction of the dinosaurs.

During an expedition in southern Saskatchewan, Canada, the team discovered the first fossil - record evidence of forest fire ecology — the regrowth of plants after a fire — revealing a snapshot of the ecology on earth just before the mass extinction of the dinosaurs.

Near - Earth asteroids are doubly intriguing: One is believed to have collided with our planet 65 million years ago and caused the extinction of the dinosaurs and many other forms of life — an event that could, of course, recur.

The impact of a 10 - kilometre asteroid is blamed for the extinction of the dinosaurs and most other species on the planet.

The team's finding of ancient ecological recovery from a forest fire will help broaden scientists» understanding of biodiversity immediately before the mass extinction of dinosaurs.

Some researchers suspect that the modern cetaceans quickly diversified into new species because of the ecological void left behind following the demise of the archaic cetaceans, much like mammals did after the extinction of the dinosaurs.

The approximately 4 - ton, 30 - foot - long predator lived 67 million years ago during the end of the Cretaceous Period, an epoch marked by intense volcanic activity and the extinction of the dinosaurs.

Thought to have lived between 60.5 and 61.6 million years ago, the fossil is suggested to have formed shortly after the extinction of dinosaurs and many marine organisms.

An asteroid crater in Iowa, thought to provide evidence for the extinction of the dinosaurs at the end of the Cretaceous period, is much older, say geologists.

Computer simulation was required in the study of coesite, found on a crater produced by a comet or asteroid that hit Mexico and led to extinction of the dinosaurs.

Alvarez and colleagues from Columbia University's Lamont - Doherty Earth Observatory later determined that the middle layer was laid down at the exact time of the extinction of the dinosaurs.

The time you spent in Italy helped you explain the extinction of the dinosaurs 65 million years ago.

The Chicxulub crater that has been linked to the extinction of the dinosaurs 66 million years ago does not completely coincide with the solar system passing through the disc — but Randall says there are enough uncertainties that there still could be a link.

A recent explanation for the identity of the mysterious stuff leads to a scenario in which it could be to blame for the extinctions of dinosaurs, or at least send a few extra comets shooting our way.

The extinction of the dinosaurs, for instance, is thought to have been brought on by a mega-collision at the end of the Cretaceous period.

And maybe it was lost in most of them when mammals diversified after the extinction of the dinosaurs.

CONTROVERSY still simmers over what caused the extinction of the dinosaurs.

Although major impactors have become comparatively rare occurrences during the past 500 million years, the extinction of the Dinosaurs may have been assisted by a large asteroidal or cometary impact about 65 million years ago centered near Puerto Chicxulub, at the tip of Mexico's Yucatan Peninsula.

How the extinction of the dinosaurs, Arctic methane leaks, and nuclear weaponry reveal the precarious thresholds of life on Earth.

The extinction of dinosaurs paved the way for ray - finned fish species, researchers claim.