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Solving the mystery behind a flightless beetle's transatlantic journey

المصدر: Phys.org - latest science and technology news stories · نُشر

Solving the mystery behind a flightless beetle's transatlantic journey
المصدر: Phys.org - latest science and technology news stories

They can't fly or swim, so why do their closest relatives appear on different continents? Grey Gustafson, an associate professor in the Department of Biological Sciences, discovered through DNA sequencing that the ancestors of some of today's tiger beetles existed in South Americ

They can't fly or swim, so why do their closest relatives appear on different continents? Grey Gustafson, an associate professor in the Department of Biological Sciences, discovered through DNA sequencing that the ancestors of some of today's tiger beetles existed in South America and Africa before the two continents separated. What's more, North America's largest tiger beetles are related to these ancestral South American giant tiger beetles.

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DNA recording system reveals how a single cell becomes a body
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DNA recording system reveals how a single cell becomes a body

Scientists have traced the development of a mouse embryo from its first two cells to the formation of organs, using a remarkable DNA recording system that reveals the family history of individual cells. Their findings uncover how different cell types emerge on their own schedules

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