The artist had a billy goat in southern France, but it lost favor after developing a penchant for butting his son Claude.  
He loved animals so much that he kept a brood of white mice in a drawer in his first Paris studio.  The artist had a billy goat in southern France, but it lost favor after developing a penchant for butting his son Claude.  Despite this, animals were not frequently depicted in his early oeuvre, but did become more prevalent in such later works as 1944's Man with Sheep and 1950's She-Goat.  FTP, name this eventually Cubist painter, who depicted at least parts of animals in his most famous painting, 1937's Guernica.
He loved animals so much that he kept a brood of white mice in a drawer in his first Paris studio.  
Pablo Picasso