Puppies from the first litter born by in-vitro fertilization are held in this undated handout photo provided by Cornell University/Mike Carroll. The seven puppies were born on July 10 and include five beagles and two beagle-cocker spaniel mixes. The results were published on December 9, 2015, in the science journal PLOS ONE. REUTERS/Cornell University/Mike Carroll/Handout via ReutersATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. FOR EDITORIAL USE ONLY. NO RESALES. NO ARCHIVE.