Worm-eating mice reveal how evolution works on islands

Australia has a bunch of kangaroo species, Madagascar has multiple species of lemurs, the Galapagos Islands have boulder-sized tortoises—islands get lots of cool animals. That's because when animals are isolated on islands, they can evolve into strange new species found nowhere else on Earth. But what's the cut-off—how small can an island be and still support the evolution of multiple new species from a single common ancestor? A team of mammalogists just discovered that four species of mice evolved from one common ancestor on Connecticut-sized Mindoro Island in the Philippines, making it the smallest known island where one kind of mammal has branched out into many more.

How an island of mice is changing what we know about evolution

Evolution takes time and space. Enough time needs to pass for genetic differences to crop up in a population of animals and make them distinct from their forebears. And enough space is needed ...

Thu 17 May 18 from Mongabay.com

Worm-Eating Mice on Small Island Hold Clues to Evolution

Researchers found that four species of mice evolved from a common ancestor on Mindoro Island in the Philippines, making it the smallest known island where one kind of mammal has branched out ...

Tue 15 May 18 from Newswise

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