Walter Alvarez
![Luis and Walter Alvarez (L{{ndash}}R) at the K{{ndash}}T Boundary in [[Gubbio]], [[Italy]] in 1981](https://upload.wikimedia.org/wikipedia/commons/8/8a/LWA_with_Walt.JPG)
Walter Alvarez (born October 3, 1940) is a professor in the Earth and Planetary Science department at the University of California, Berkeley. He and his father, Nobel Prize–winning physicist Luis Alvarez, developed the theory that dinosaurs were killed by an asteroid impact.
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