animales

bibliografia:

http://www.google.com.co/search?hl=es&sugexp=crnk_lssbd,lf%3D90,ss%3D94,se%3D98&cp=10&gs_id=x&xhr=t&q=animale+extintos&gs_sm=&gs_upl=&bav=on.2,or.r_gc.r_pw.,cf.osb&biw=1280&bih=843&wrapid=tljp1320409449933017&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi