Simplify the following text for a Grade 9 native English-speaking person.
Original: Lynx have not been seen in Yellowstone since 1998 , though DNA taken from hair samples obtained in 2001 confirmed that lynx were at least transient to the park .
Simplified: Lynx have not been seen in Yellowstone since 1998 , though DNA taken from hair samples showed that lynx were at least passing through the park .