Tag Archives: life

Breathing new life into the rise of oxygen debate

New research strongly suggests that the distinct ‘oxygenation events’ that created Earth’s breathable atmosphere happened spontaneously, rather than being a consequence of biological or tectonic revolutions. The study not only shines a light on the history of oxygen on our … Continue reading

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Untangling the branches in the mammal tree of life

Researchers have unveiled a complete overhaul of the way species data is brought together and analyzed to construct an evolutionary tree of life for mammals. It’s aimed at giving scientists, conservation managers, policymakers, and environmentalists more accurate, comprehensive information about … Continue reading

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New study underpins the idea of a sudden impact killing off dinosaurs and much of the other life

Fossil remains of tiny calcareous algae not only provide information about the end of the dinosaurs, but also show how the oceans recovered after the fatal asteroid impact. Paleontology News — ScienceDaily

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Did early mammals turn to night life to protect their sperm?

Humans are diurnal — we are active in the day and sleep at night. But diurnalism is by far the exception rather the rule in mammals. About 250-230 million years ago, the mammalian ancestors, called the therapsids, became exclusively nocturnal, … Continue reading

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Early life on Earth limited by enzyme

A single enzyme found in early single-cell life forms could explain why oxygen levels in the atmosphere remained low for two billion years during the Proterozoic eon, preventing life colonizing land. Paleontology News — ScienceDaily

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Evolution of life in the ocean changed 170 million years ago

New research identifies a previously overlooked global event which changed the course of the evolution of life in the oceans. It coincided with a rise in calcium carbonate-secreting plankton and their subsequent deposition on the ocean floor. Paleontology News — … Continue reading

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Antarctic marine life recovery following the dinosaurs’ extinction

A new study shows how marine life around Antarctica returned after the extinction event that wiped out the dinosaurs. A team studied just under 3000 marine fossils collected from Antarctica to understand how life on the sea floor recovered after … Continue reading

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Dinosaur bones are home to microscopic life

Scientists went looking for preserved collagen, the protein in bone and skin, in dinosaur fossils. They didn’t find the protein, but they did find huge colonies of modern bacteria living inside the dinosaur bones. Paleontology News — ScienceDaily

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Tracking records of the oldest life forms on Earth

Ancient organic matter of biological origin has been tracked in multiple samples of rock spanning over 2,000 million years of Earth’s history, according to researchers. Paleontology News — ScienceDaily

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Biodiversity: Climate key to abundance of life

Natural history museum paleontologists have succeeded in mapping historical biodiversity in unprecedented detail. For the first time, it is now possible to compare the impact of climate on global biodiversity in the distant past — a result that paints a … Continue reading

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