• Studio di asino
    Claes BERCHEM
    Studio di asino
  • Scarafaggio sulla Terra
    Duilio CAMBELLOTTI
    Scarafaggio sulla Terra
  • Serpente
    Duilio CAMBELLOTTI
    Serpente
  • Studies of birds
    Fred W. DAVIS
    Studies of birds
  • Studies of cats
    Ferdinand-Victor-Eugene DELACROIX
    Studies of cats
  • Api
    Duilio CAMBELLOTTI
    Api
  • Study of raven and hand
    Adolf HIRÉMY-HIRSCHL
    Study of raven and hand
  • Étude de cheval - recto; Étude de femme assise et cheval – verso
    Paul GAUGUIN
    Étude de cheval - recto; Étude de femme assise et cheval – verso
  • Mouth with beetle
    Stanislao LEPRI
    Mouth with beetle, 1977
  • Topi in trappola
    Alberto MARTINI
    Topi in trappola
  • Chaton endormi
    Andrè MASSON
    Chaton endormi
  • Agnellino
    Filippo PALIZZI
    Agnellino
  • Monkey Seated
    David TENIERS The Younger (circle of)
    Monkey Seated
  • Lupo
    Sirio TOFANARI
    Lupo
  • Study of sheep lying down
    Jan van der MEER II
    Study of sheep lying down, 1698
  • Sheep
    Eugene VERBOECKOVEN
    Sheep