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Found 3 resources for the concept: The number of offspring that survive to reproduce successfully is limited by environmental factors

imageDarwin and Wallace: Natural selection
Darwin and Wallace came up with the idea of natural selection, but their idea of how evolution occurs was not without predecessors.
This article is located within History of Evolutionary Thought.

Audience: 6-8

Source: UC Museum of Paleontology

Resource type: Article

imageClipbirds
Students learn about variation, reproductive isolation, natural selection, and adaptation through this version of the bird beak activity.

Audience: 6-8

Source: UC Museum of Paleontology

Resource type: Classroom activity

imageThe Making of the Fittest: Natural Selection and Adaption
This 10-minute film describes the research of Dr. Michael Nachman and colleagues, whose work in the field and in the lab has documented and quantified physical and genetic evolutionary changes in rock pocket mouse populations.

Audience: 6-8

Source: Howard Hughes Medical Institute

Resource type: Video

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