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Changes to a neighborhood park in Illinois have affected the Northern White-Footed mice who live in the forest nearby. In this audio story, you'll hear from a scientist who is studying living mice today and comparing them to museum samples of dead mice to understand how they've changed and why. What they are finding is that the mice are growing much faster than their ancestors. Listen to learn more about their fascinating story.
Story Length: 3:37
Michigan Radio
The study of genes is moving toward a new frontier. There is a new field studying the little known field of microorganisms. Microbes run every process on earth. And a human is made up of 90% bacteria, or microorganisms. And yet we know very little about microbes. This public radio story looks closely at the microscopic microbes.
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The little green sea slug is a puzzle to scientist because it can live in fresh water. Scientists discover the sea slug uses photosynthesis like a plant and has the DNA of a slug and algae.This audio story raises the question of whether the sea slug is an animal or a plant.
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Animal species evolve and adapt over time. This ability to change lays the groundwork for human evolution. Over 375 million years ago an important transition in this lineage occurred - animals living in the sea, began living on land. This complex process happened gradually over generations and an unusual fish fossil found in the Canadian Arctic may help enhance our understanding of this progression.
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As plants and animals reproduce over time, they are able to change and adapt to ensure or improve their chances of survival. The evolutionary goal of reproduction is paired with the concept of natural selection and survival of the fittest to determine who will reproduce. From colorful plumage to size, different species use different strategies to ensure reproduction and mate selection. The sand tiger shark has a unique strategy to ensure successful reproduction - and it depends on the timing of mating. Listen to learn more about the ultimate sibling rivalry while in the womb.
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