Dinosaurs were thriving before asteroid strike that wiped them out

Dinosaurs were unaffected by long-term climate changes and flourished before their sudden demise by asteroid strike.

Scientists largely agree that an asteroid impact, possibly coupled with intense volcanic activity, wiped out the dinosaurs at the end of the Cretaceous period 66 million years ago, according to Science Daily.

However, there is debate about whether dinosaurs were flourishing before this, or whether they had been in decline due to long-term changes in climate over millions of years.

Previously, researchers used the fossil record and some mathematical predictions to suggest dinosaurs may have already been in decline, with the number and diversity of species falling before the asteroid impact.

Swifts are born to eat and sleep in the air

"They eat and sleep while they are airborne. This is something that researchers have believed since the 1950s, and now we can show that it's true," says Anders Hedenström, professor at the Department of Biology at Lund University.

Three years ago, the same research team at Lund University observed that within the species common swift, (Apus apus) there were individuals that live in the air for up to ten consecutive months without landing -- a world record for being airborne.

Frog the size of a human FINGERNAIL discovered in Arizona lived alongside the dinosaurs 216 million years ago

Ancient relatives of modern-day frogs were the size of a fingernail and lived alongside the dinosaurs 216 million years ago.

Bone fragments the size of an eyelash were found embedded in rock and experts believe they date back to the Late Triassic. 

The section of hip-bone, known as the ilium, belongs to a group of amphibians known as Chinle frogs - a long-extinct branch of modern frogs, according to Daily Mail.

Palaeontologists from Viginia Tech identified the fossil fragments and claim they are the oldest known frogs.

The fragments are packed into rock and are smaller than a fingernail, according to the researchers.

Right- or left-handed? Gene expression tells the story of snail evolution

Snails, like humans, can be right-handed or left-handed and the swirl etched into the shell of a snail can reveal a lot about them, down to their genetic makeup.

Researchers from Shinshu University and the Okinawa Institute of Science and Technology Graduate University in Japan have found that the gene influencing the direction of the shell coil may also offer insight into the evolution of snails overall.

The shell swirl reflects the handedness of the snail's internal organs. In humans, about one in 10,000 people have mirrored organs, with their heart more to the right than to the left. The flipped organs rarely result in symptoms for the person , according to Science Daily.

Low-level clouds that cover the oceans could DISAPPEAR in the next century as a result of rising CO2 levels and cause climate change to spiral out of control, study warns

Rising greenhouse gases in Earth’s atmosphere could eventually drive low-level clouds out of the skies.

And, this could make global warming much, much worse.

This is according to a new study, which found that high concentrations of atmospheric carbon dioxide cause marine stratus clouds to break up and, eventually, disappear.

Without these clouds, the surface would be exposed to more extreme levels of sunlight, risking global temperature increases upwards of 14 degrees Fahrenheit, according to Daily Mail.