—With birds the voice serves to express various emotions, such as distress, fear, anger, triumph, or mere happiness.
— from The Descent of Man and Selection in Relation to Sex, Vol. II (1st Edition) by Charles Darwin
With birds the voice serves to express various emotions, such as distress, fear, anger, triumph, or mere happiness.
— from The Descent of Man, and Selection in Relation to Sex by Charles Darwin
|