Ungulate – any hoofed mammal
Unguligrade – gait in which only the tips of the digits, covered in hooves, touch the ground
Urodelan – group of limbed, lizardlike amphibians consisting of salamanders and newts
Urticating Hair – (in invertebrates) barbed hairs that are used as a defensive mechanism
Venom – a toxin produced by an animal that is typically injected into prey or aggressors via a bite or sting
Vertebrate – an animal with a backbone
Vibrisse – stiff hairs or whiskers projecting from the face and used for sensory reception
Viviparous – method of reproduction in which young are produced at a stage of development in which they are active
Vomeronasal Organ – a special “smell-taste” organ in the hard palate of many mammals and squamate reptiles
Wattle – (in birds) a bare, fleshy area of skin, often highly colored and pendulous, that usually hangs from the throat or around the eyes
Wing – any of a number of specialized paired appendages that enable some animals to fly
Zoonosis – a disease which can be transmitted from animals to humans.
Zygodactyl – (in birds) having two toes facing forward and two facing the rear