I would be happy just to keep the building research and some of the basic infrastructure research. I'm happy to have to restart animal research ect. It is not unrealistic to share building and architecture knowledge between zoo's in the same franchise. Our three zoo's in Melbourne are all part of Zoo's Victoria and share info, research, designs and even animals. If we can share CC and animals it would not be a stretch to share some research.
I am a bit confused by this, what you describe is not unusual for multi zoo owners, but I can't understand why you would want to restart research or think that be realistic...
Here's a story, see if you spot the unlikely part
Zoo A: I am over 100 years old and considered one of the most famous zoos in the world
Zoo B: I am over 50 years old and have vast knowledge of certain species but I am intending to be a niche zoo
Company Z: I own Zoo A and Zoo B and wish to open Zoo C next year.
Company Z plan: As a company I have decided to show Zoo C how to build the best buildings and will move some top animals from Zoo A and Zoo B to Zoo C as part of the launch. However, under no circumstances will Zoo A or Zoo B tell Zoo C what these animals like or how to look after them!
Zoo C: Woohoo we're open! I have some of the rarest animals on the planet, awesome! Sh*t our Panda just died and the Orangutan's habitat was just destroyed by the Sumatran Rhino! and you won't believe what the Lion's did to my albino Water Buffalo!
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Sarcastic af but I think it illustrates my point