Was Carl Sagan Vegan?

• Carl Sagan was a very rational person and considered as one of the brilliant minds of our time.
• Carl Sagan not only knew humans are not the centerpiece of creation, he also strongly criticized their arrogant view.
• Carl Sagan acknowledged the pain we inflict to innocent beings and that animal exploitation is wrong:

  "Humans - who enslave, castrate, experiment on and fillet other animals - have had an understandable penchant for pretending animals do not feel pain. A sharp distinction between humans and 'animals' is essential if we are to bend them to our will, wear them, eat them - without any disquieting tinges of guilt or regret. It is unseemly of us, who often behave so unfeelingly toward other animals, to contend that only humans can suffer. The behavior of other animals renders such pretensions specious. They are just too much like us."

  ~Ann Druyan, Carl Sagan, "Shadows of Forgotten Ancestors"

With those attributes, one might expect Carl Sagan to be at least vegan.
In reality, Carl Sagan was not vegan, but rather one of many individuals who did not want to give up their high-level and convenient lifestyle.