In the popular 90s cartoon Pinky and the Brain, the Brain, a cunning lab mouse with a large head, dreamt of world domination. A recent study in Science suggests that the evolution of a small thumbnail may have played a crucial role in the global spread of rodents.
Rodents account for nearly half of all mammal species, showcasing their remarkable adaptability and evolutionary success. This study sheds light on how a seemingly insignificant trait like a tiny thumbnail could have contributed to their widespread dominance across the planet.
Source: The Washington Post
Author: Vivian Ho
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