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.
Considerable overlap in toxins exists between venomous snake species and venomous lizard species. While the system of delivery differs -- snakes inject venom through sophisticated fangs while lizards have more primitive glands that mix venom with saliva -- the common toxins suggest a shared lineage.hough poison and venom are often used interchangeably, and though both rely on the transmission of toxins from one organism to another, poison and venom are different concepts. Poisonous animals, like poison dart frogs, have a toxin that is present on or in their bodies.