Silvery minnows in the Rio Grande were in danger of going extinct because of changes in the river over many years. Minnows raised in fish hatcheries struggled to find food there, and as a result, many died. Find out how scientists worked to teach these minnows how to feed themselves in the Rio Grande after they were released. Then complete the FACT-ivity to make your own model of a diatom.
By the Light of the Silvery Minnow - Investi-gator
FACTivity (pg. 38-39)