The dinosaur killing asteroid birth, Today's rain forests plant fossils to reveal the forests of the Cretaceous period was faster and less human and day counterparts Columbia's rain forest looked very different 66 million years ago. Present the human and bio diverse ecosystem is jam packed with plants
there are no dinosaurs, but prior to the dinosaurs going away with the chicks a lot of impact, signaling the end of the Cretaceous Period, things looked very different.

The areas plant coverage was relatively sparse and the bevy of conifers called of impact, signaling the end of the Cretaceous Period, things look very different. The area coverage was relatively sparse and a bevy of conifers called it home. Ars Technica this story originally appeared on Ars Technica a trusted source for technology news tech policy analysis, reviews, and more. Pass is owned by wi EDS parent company, Conde Nast, using the fossilized remains of plants.

A team of researchers studied the past of the rain forest and how the asteroid gave rise to the rain forests of today. The study, published in Science on April 1 was led by scientists at the Smithsonian Tropical Research Institute SPRI in Panama and supported by scientists and the Nagorny Institute for plant conservation science and action at the Chicago Botanic Garden forests disappeared because of the ecological catastrophe. And then the returning vegetation was mostly dominated by flowering plants, said Monica Carvalho first author and joint postdoctoral fellow at St Ri and at the Universidad del Rosario in Colombia. In an interview with us.

The research began 20 years ago with parts of the team collecting and analyzing 6000 leaf and 50,000 pollen fossils from Columbia, looking at these fossils allowed the team to get a sense of the types of plants present both before and after the asteroid struck the planet. this sequence represents the region's biodiversity between 72,000,050 8 million years ago, covering both before and after the impact, it took us a long time to gather enough data that we could have a clear picture of what was going on during the extinction Cavallo told us. While the study deals with Colombian fossils cavallino said the researchers can get a fair idea of what happened in rain forests elsewhere in Central and South America, though the effect.So the asteroids impact are somewhat variable from region to region.

It's a little bit variable, we still don't know why some places were affected more than others. She said, after the asteroid hit the Earth, nearly half of the plant species in Colombia perished, the pollen fossils for those species stopped appearing past that point, the rain forest began to be taken over by ferns and flowering plants that while present preimpact were less common than they are today.But then counterparts. Current rain forests have thick canopies, and the plants within them are spaced closely together, meaning more plants are transpiring water into the atmosphere. This leads to higher levels of humidity and cloud coverage.

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