- 
  
  More European colleges start teaching Zoology. The study erupts.
 - 
  
  He studied Aristotle's works and wrote about animals in the 13th century.
 - 
  
  Aristotle made lots of notes on the behavior of animals and those helped other scientists in the future. He didi this in 4th century B.C.
 - 
  
  said fossils were remaines of animals. was thrown in prison for his oppinions.
 - 
  
  introduced horses, mules, pigs, cattle, and sheep to the american suothwest.
 - 
  
  invented
 - 
  
  
 - 
  
  died there
 - 
  
  came up with concept of speices
 - 
  
  discovered first dinosour fossil
 - 
  
  Origin of species published
 - 
  
  American Society for Prevention of Cruelty to Animals
 - 
  
  between Britian and U.S.
 - 
  
  first one imported to U.S.
 - 
  
  established