1 Program Levels: Bachelor's, master's and doctorate. 2  Program Specializations: Options include ecology and wildlife sciences. 3  Program Length: A bachelor's normally takes 4 years.  Other Requirements: At the graduate level, practicums and thesis projects must be completed for graduation.
BananaStock/BananaStock/Getty Images. Lizards puff their necks for a number of reasons. Whether they're trying to get attention from you or a or to intimidate another lizard, it's a normal part of lizard behavior. Learning why lizards puff their necks can help you better care for your pet.
Size: The largest lizard is the Komodo monitor. It can grow longer than a person. The smallest lizard is a tiny gecko. Characteristics: Most lizards have dry, scaly skin. They have four legs, clawed feet, and a long tail. You can see their outside ear opening.Lizards have a weak tail.t can grow longer than a person. The smallest lizard is a tiny gecko. Characteristics: Most lizards have dry, scaly skin. They have four legs, clawed feet, and a long tail.