Caught in the act
Scientists observe species in the process of evolving
By Alison Pearce Stevens, 12:15 PM December 10, 2013
Most animals, plants and other organisms possess a broad range of traits, or features. For instance, within a species, some individuals might be bigger. Some might be faster or better camouflaged. Others might have genes that allow them to resist disease, better digest some foods or even learn new tasks more quickly.
Many traits help an organism survive and reproduce. These traits often can be inherited. That means an organism can pass them down to its offspring. Over multiple generations, use...
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