Dogs Behave Jealously… in 1871

This chart appeared in “Mental Evolution in Animals” “Mental Evolution in Man”, both published in the 1880s; Romanes depicts the emotional and cognitive development starting with unicellular. On the left, at level 21, Romanes lists “Jealousy. Anger and Play.” On the right side, at level 28 we see “Anthropoid apes and dogs” at the same…

“First Stage of Cruelty”, cruelty to animals

Hogarth’s  The Four Stages of Cruelty (1751) depict, fictional protagonist Tom Nero as he progresses from cruelty to animals as a child, to cruelty to animals as an adult. While various Scenes of sportive Woe, The Infant Race employ, And tortur’d Victims bleeding shew, The Tyrant in the Boy. Behold! a Youth of gentler Heart, To…