Complete Animal Species Holder

Build a zoo that houses every available animal species.
The animals’ happiness does not matter.

To ensure there is enough space for reasonably decent enclosures, it is necessary for some species to share habitats without feeling threatened. This is possible with:

- Peacocks and flamingos
- King penguins, snow hares, and wild horses
- Zebras, kangaroos, ostriches & quaggas
- Orangutans and chimpanzees
- White tigers and tigers
- Wolves and thylacines
- Reindeer, moose, Père David’s deer, gazelles, and okapis
- Leopards and black leopards

Additional successful combinations (suggested by kerstin.nitsrek):

Giant tortoise & sea lion

Blue peacock, armadillo, anteater & gazelle

Moose & otter

Bison & wolf

Okapi, zebra, ostrich, kangaroo, quagga

Rhinoceros and llama

Hippos get along with aquatic animals, e.g. belugas

Additional successful combinations (suggested by nimby):

Orcas and sharks can also live together, which saves a lot of space

Visitor facilities and paths are completely ignored.

Achieving this achievement takes about 4 hours in this setup.

You can shorten this by simply building every available animal house (without enclosures, keepers, feeding stations, etc.) and breeding back the remaining required animals.
It is important to do this in easy mode, otherwise the animals will attack each other.