IS8 A GUIDE FOR THE STUDY OF ANIMALS 



Carnivorous, flesh-eating. 



Herbivorous, plant-eating. 



Omnivorous, eating both plant and animal food. 



Observations in the laboratory. 



Note. — Answer the following questions for one or more of the fol- 

 lowing: Thecow, sheep, goat, hog, and horse. If desired, the questions 

 may be answered in the form of a table. 



1. What is the relative length of the neck } What is 

 its direction with reference to the body .■' Of what impor- 

 tance is this length and direction .? 



2. What is the length" and appearance of the tail? 

 What is its use .? 



3. What is the relative length of the legs .■• Locate the 

 heel, knee, and elbow. (Reference should be made to a 

 diagram of a skeleton.) When the leg is long, in which 

 bone is this lengthening accomplished (compared with 

 human skeleton) .' 



4. How many toes on each foot .? Is the animal an ar- 

 tiodactyl or a perissodactyl .? Is it plantigrade or digiti- 

 grade .' 



5. What is the relative size and position of the ears 

 (external ear) } 



6. What is the relative size and position of the eyes ? 

 nostrils .-' 



7. Are horns of any kind present ? If so, note the size, 

 shape, and direction. Are they present in both sexes.? If 

 not, in which one .' If in both, note any differences distin- 

 guishing the sexes. 



Suggested drawings. 



a. Head, side view. 



b. Entire animal, side view. 



