Final code

src/packageBoi/ZooMain.java

@@ -6,7 +6,7 @@ import java.util.Scanner;
 public class ZooMain {
 	
 	static Mammal Zebra = new Mammal("Zebra", "Mammal", "Plains", "Herbs");// a declaration of an animal, using the constructor
-	static Mammal Elephant = new Mammal("Elephant", "Mammal", "Savanna", "Herbs");
+	static Mammal Elephant = new Mammal("Elephant", "Mammal", "Savanna", "Herbs");//only added 8 animals, 2 of each type, more can be added any time 
 	static Reptile Crocodile = new Reptile("Crocodile", "Reptile", "Swamp", "Meat");
 	static Reptile Chameleon = new Reptile("Chameleon", "Reptile", "Forest", "Insects");
 	static Bird Hawk = new Bird("Hawk", "Bird", "Desert", "Meat");