          Sentence 1: Andrew Sugden., an- evolutionary.  biology ‘expert.-and ‘international ‘managing  editor of Science’, desctibed ‘the firid “as a;  inllestone :. this research has broke the size  barrier for rodents         Sentence 2: Aridrew Sugden , aii evolutionary   “biology expett-anid the’ititernational rianaging  editor’ of Scignice: , described the’ firtd -as°a:"  milestone’ :