Apart from the gift shop, it occurred to me that other buildings could be added to the game. One could be an osteology building, in which there would be an educator explaining curiosities about animals to visitors who wanted to enter the building. For example:
1) Visitors will learn what an animal eats by looking at the shape of its teeth
2) Visitors will learn how different animals move and how the bones in an animal's hands and feet can give us clues about its movement
3) Visitors will learn to read the location of eyes on a skull to identify predatory animals and prey. They will also learn to read teeth to identify skulls as carnivores, herbivores or omnivores.
And inside the building you would see things similar to these images
1) Visitors will learn what an animal eats by looking at the shape of its teeth
2) Visitors will learn how different animals move and how the bones in an animal's hands and feet can give us clues about its movement
3) Visitors will learn to read the location of eyes on a skull to identify predatory animals and prey. They will also learn to read teeth to identify skulls as carnivores, herbivores or omnivores.
And inside the building you would see things similar to these images