But fortunately for most of us, the immune system is constantly on duty to battle germs that could make us ill. The following discussion questions and activities will help your students learn about how the immune system protects them from germs and illness.
Elephants however, go through six sets of 9lb teeth during their lifetimes, with new teeth growing in to replace old ones that have worn out. An elephants starts with two front teeth that fall out after about a year and are replaced by a set of tusks.
Horses do have canine teeth, and their baby canines should come in between 6-9 months of age (not all horses have baby canines). Horses have three sets of baby premolars (3 on each side, top and bottom). They are often born with all of these teeth. Otherwise, they should come in within the first 2 weeks of life.