188 GLOSSARY 



specialized. Designed, fitted, or adapted for use in one spe- 



cial manner. 



Spout (of The column of vapor; the exhaled breath sent 



whales). out through the nostril (blowhole) of a 



whale when it comes up for breath. 



tactile. Touching. In some mammals, special tactile 



surfaces of toes, fingers, and the tips of 

 tails ; also tactile hairs, as cats' whiskers. 



talon. In bats, a subsidiary claw-like process at the 



base of the real claw. 



termites. White ants ; pale-colored, soft-bodied insects 



of the family Termitidae. They are not true 

 ants. 



terrestrial Those that live on the ground in contrast to 



animals. those that live in the water or in trees. 



Tertiary. The last great period of geologic time follow- 



ing the Mesozoic or Age of Dinosaurs. Most 

 modern orders of mammals developed dur- 

 ing the Tertiary period. 



trefoil. Shaped like a three-leafed clover. 



trmicate. Cut off ; chopped off. 



W-pattern. In describing teeth, crowns with cusp pattern, 



when seen from above, arranged like the 

 letter W. 



