The rate of passage of food residues through the digestive tract of the horse

The canine teeth of the horse developed phylogenically from the simple, pointed, short-rooted tooth form of the leaf eating, in pairs living, Eocene horse dagHyracotherium and served up to the Oligocene as a means of defense (self preservation).

Author Alexander, F.
Year 1946
Secondary title Journal of Comparative Pathology
Volume 56
Pages 212-217