evolved

Land animals evolved from marine ancestors – a new study reveals the genes of the transition

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A colorful timeline of when different generations of animals evolved into lifestyles based on land.

The transition from water to land is a question that still puzzles scientists. Those ancient organisms would need to adapt to the many new challenges of life outside of water. So, how did they do that? In the 2025 study, my colleagues and I tried to understand the genetic basis of adaptation to life on … Read more

Andeans appear to have evolved a remarkable genetic capacity

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Andeans appear to have evolved a remarkable genetic capacity

For thousands of years, people living high in the Andes of Argentina have relied on drinking water that could make many people sick. There, arsenic naturally occurring in the volcanic rocks seeps into the groundwater, contaminating local water supplies with levels of the toxic metalloid that can pose serious health risks to many people. But … Read more