UNLV Professor Brendan O'Toole, top, and Katherine Lau, an undergraduate intern from Rutgers University, right, join Yong Dawson in helping to take measurements from Dawson's 4-year-old daughter Hailey Dawson in O'Toole's lab June 19, 2014 at the University of Nevada, Las Vegas.

Aaron Mayes / UNLV Photo Services

UNLV Professor Brendan O'Toole, top, and Katherine Lau, an undergraduate intern from Rutgers University, right, join Yong Dawson in helping to take measurements from Dawson's 4-year-old daughter Hailey Dawson in O'Toole's lab June 19, 2014 at the University of Nevada, Las Vegas.