Related topics: species · genes · plants · evolution

The evolution of orchids

(PhysOrg.com) -- Charles Darwin and many other scientists have long been puzzled by the evolution of orchids, the largest and most diverse family of flowering plants on Earth. Now genetic sequencing is giving scientists insights ...

Modeling the origins of life: New evidence for an 'RNA World'

Charles Darwin described evolution as "descent with modification." Genetic information in the form of DNA sequences is copied and passed down from one generation to the next. But this process must also be somewhat flexible, ...

A gene that shaped the evolution of Darwin's finches

Researchers from Princeton University and Uppsala University in Sweden have identified a gene in the Galápagos finches studied by English naturalist Charles Darwin that influences beak shape and that played a role in the ...

Evolution of the appendix: A biological 'remnant' no more

The lowly appendix, long-regarded as a useless evolutionary artifact, won newfound respect two years ago when researchers at Duke University Medical Center proposed that it actually serves a critical function. The appendix, ...

Dung beetle named after Darwin

A dung beetle from Costa Rica has been named after Charles Darwin and the Darwin Initiative. It was discovered during a Natural History Museum led expedition.

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