Clues from a Somalian cavefish about modern mammals' dark past

After millions of years living in constant darkness, a species of blind cavefish found only in Somalia has lost an ancient system of DNA repair. That DNA repair system, found in organisms including bacteria, fungi, plants, ...

How chewing like a cow helped early mammals thrive

You probably haven't given much thought to how you chew, but the jaw structure and mechanics of almost all modern mammals may have something to do with why we're here today. In a new paper published this week in Scientific ...

How mammary glands appeared in the course of evolution

A joint team of geneticists from the University of Geneva (UNIGE) and the Swiss Federal Institute of Technology in Lausanne (EPFL), Switzerland, demonstrated that the emergence of mammary glands in placental mammals and marsupials ...

How the pangolin got its scales – a genetic just-so story

Everyone loves animal oddities. Darwin and Lamarck pondered the advantages of the giraffe's long legs and neck, while a few decades later Rudyard Kipling explained how the leopard got its spots. Today genome sequencing is ...

How to be a male without the Y chromosome

Hokkaido University researchers have revealed that key sex-determining genes continue to operate in a mammalian species that lacks the Y chromosome, taking us a step further toward understanding sex differentiation.

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