In this July 24, 2013 photograph, reintroduction biologist Allison Sacerdote-Velat lowers a 

In this July 24, 2013 photograph, reintroduction biologist Allison Sacerdote-Velat lowers a container holding a meadow jumping mouse into a cage at Rollins Savanna in Grayslake, Ill. Scientists at Lincoln Park Zoo are raising meadow jumping mice and and releasing them into the wild in an effort to help restore dwindling Midwestern prairies. (AP Photo/Scott Eisen)
Associated Press
In this July 24, 2013 photograph, reintroduction biologist Allison Sacerdote-Velat lowers a container holding a meadow jumping mouse into a cage at Rollins Savanna in Grayslake, Ill. Scientists at Lincoln Park Zoo are raising meadow jumping mice and and releasing them into the wild in an effort to help restore dwindling Midwestern prairies. (AP Photo/Scott Eisen)
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