REMOVE

1. Emotions
2. Mammals
3. Darwin, Charles, 1809-1882

WHAT

1. Illustrated works (3)
2. Dogs (2)
3. Apes (1)

WHO

1. Riviere, Briton (1)
2. Wolf, Joseph, 1820-1899 (1)

WHEN

1. 1872 (3)
2. 19th Century CE (3)