Hear an anthropologist speak in Houston on the evolving relationship between humans and water. Go to www.hmns.org
The weeklong Perseid meteor shower peaks. Watch after midnight. For more info go to http://bit.ly/Ln3pCr
In Ann Arbor, Mich., bring preschoolers on a morning hike to explore the outdoors. For more info, see www.lesliesnc.org
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