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How did any life survive after the dinosaurs?
Plants and animals came back much faster than thought, with plants spurring mammals to diversify, the team reports today in Science. Half the plant species died out. With the great dinosaurs gone, mammals expanded, and the new study traces that process in exquisite detail.
Can we bring a dinosaur back to life?
“The problem with dinosaurs is that the oldest DNA that we have in the fossil record is about a million years old, and dinosaurs died out 66 million years ago.” This is a problem because while some soft tissues and proteins can be preserved over large geologic timescales, DNA, as far as scientists know, cannot.
How long were humans around when the dinosaurs went extinct?
So, as you can see, there was a long time that passed between when the dinosaurs went extinct and when humans were around (about 62.5 million years). However, our species, Homo sapiens, did not exist until about 0.25 million years ago (250,000 years).
Is the world entering the greatest mass extinction since the dinosaurs?
Life on Earth is entering the greatest mass extinction since the death of the dinosaurs, according to a major new study – and humans may be among the casualties. Such a catastrophic loss of species would leave a huge hole in the world’s ecosystems, and all sorts of weird and wonderful life would evolve into the vacancies left behind.
What would the world be like without dinosaurs?
Dinosaurs lived for 165m years before their demise, but without their death, humans probably wouldn’t be here today to do their damage. Mammals, of course, were the great beneficiaries of the dinosaurs’ downfall.
When did hominids and Dinosaurs exist?
Dinosaurs existed during the late Triassic, Jurassic and Cretaceous Periods (250-65 million years ago). Hominids (the early humans) did not show up until about 3 million years ago with Homo sapiens not appearing until about 200,000 years ago.