Water bears, also known as tardigrades, can survive boiling,
freezing, the vacuum of space and years of desiccation.
Biologist Bob Goldstein, of the University of North Carolina
Chapel Hill, describes water bears and explains why he studies
them. Music by Geoffrey Raines/Bardo Music . Images/footage by
Bob Goldstein, Willow Gabriel, Victoria Madden Anthony Flemming
, and Michel Verolet