The strange tale of the lizard`s breath

Air flows through lizard lungs in one direction, a finding that may prompt a rethink about how some species evolved following Earth`s biggest mass extinction, a study said on Wednesday.

Volcanic eruptions may have caused mass extinction 250 mn years ago

Researchers have suggested that the mass extinction at the end of the Permian period, about 250 million years ago, was triggered by contemporaneous volcanic eruptions in Siberia.

Mega-volcanoes might have led to pre-dinosaur mass extinction

Scientists believe that a set of gigantic volcanic might have eruptions resulted in the disappearance of half of earth`s species 200 million years ago.

Extreme heat caused massive die-off 250m yrs ago

For five million years after the worst mass extinction in Earth`s history, much of the planet was simply too hot for anything to survive, researchers have revealed.

Huge volcanic eruptions killed ocean life before extinction of dinosaurs

Dinosaur die out might have been the second of two closely timed extinctions, according to a new University of Washington research.

Gamma ray burst may have caused mass extinction

Gamma ray burst, which occurred in a colossal group of stars called a globular cluster may have triggered a mass extinction on Earth 440 million years ago.