Overview: In this activity, students find out about research being conducted on Amazon leafcutter ants. They also watch video segments to make their own virtual field observations and write their own research proposals. Author/Source: WGBH Grade level: 9-12 Time: One to two class periods. Concepts: A hallmark of science is exposing ideas to testing. Accepted scientific theories are not tenuous; they must survive rigorous testing and be supported by multiple lines of evidence to be accepted. Science is a human endeavor. Our knowledge of the evolution of living things is always being refined as we gather more evidence. Teacher background: Nature of Science

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