div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Andres src=https:reader036fdocumentscoreader036viewer2022082512553b6a9a4a7959f87e8b46bdhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divpmamiferosLos mamíferos son aquellos animales cuya principal característica es que al nacer sep palimentan de leche maternapdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Andres src=https:reader036fdocumentscoreader036viewer2022082512553b6a9a4a7959f87e8b46bdhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divpClases de mamiferospdiv