By Rachael Rettner - Senior Writer Live Science
By Yasemin Saplakoglu - Staff Writer Live Science
By Nicoletta Lanese - Staff Writer Live Science
By Tara Santora - Live Science Contributor
By Nicoletta Lanese - Staff Writer Live Science
By Rebecca Sohn - Live Science Contributor
By Rachael Rettner - Senior Writer Live Science
By Yasemin Saplakoglu - Staff Writer Live Science
By Rachael Rettner - Senior Writer live Science
By Nicoletta Lanese - Staff Writer LiveScience