Eight billion people: How evolution made it happen

November 15, 2022, marks a milestone for our species, as the global population hits 8 billion. Just 70 years ago, within a human lifetime, there were only 2.5 billion of us. In AD1, fewer than one-third of a billion. So ...

Why plants worldwide became woody

Why do some plants grow into large woody shrubs or colossal trees, while others remain small and never produce wood in their stems? It's an evolutionary puzzle that baffled Charles Darwin more than 160 year ago. Now, scientists ...

The long and short of a supergene for efficient pollination

Scientists have solved the century-old mystery of a supergene that causes efficient cross-pollination in flowers. The results show that sequence length variation at the DNA level is important for the evolution of two forms ...

Darwin's giant daisies help researchers understand evolution

Naturalists Alfred Russel Wallace and Charles Darwin both presented the theory of evolution at the same time in 1858. They thus changed both the course of biology and how we understand the natural world around us.

New hawk moth species are among the smallest ever discovered

Hawk moths are known for being some of the largest night fliers in the insect world. With wingspans of more than four inches, many species are big enough to comfortably fill the palm of your hand. Thanks to the work of a ...

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