A few Ideas

[Iyashi]

I would love Aquariums, habitat animals that move around a LOT more (they currently look dead), unicorns (perhaps easter egg unlocks?), and truly aquatic animals such as whales. <3 Thank you sooo much for everything you've already done! I love it!!

 

[Kaan]

All species kept in captivity can be added to this game as long as they are done correctly, but don't expect eccentric things.
And I think the largest acceptable species will be Orca, we expect them to handle it with a beautiful scenario, like "whale sanctuary", "sea pen".

 

[RedPandaReggie]

Anything above Bull Sharks in the fish department I would say wouldn't fit the game, although it would create an atmospheric ocean feel if they were to add animals at the Georgia Aquarium in Atlanta which has Whale Sharks, Giant Manta Rays, Bottlenose Dolphins, Beluga Whales, animals that are successfully bred and cared for with their maximum welfare considered, this is what Planet Zoo is about, having all animals have maximum welfare, but also send out a conservation message, all animals mentioned require a decent enclosure in the size and natural design departments. Nothing like larger cetaceans like Killer Whales I wouldn't recommend, neither larger sharks such as Great White and Oceanic White-Tip Sharks that aren't kept in captivity.

 

[Kaan]

Anything above Bull Sharks in the fish department I would say wouldn't fit the game, although it would create an atmospheric ocean feel if they were to add animals at the Georgia Aquarium in Atlanta which has Whale Sharks, Giant Manta Rays, Bottlenose Dolphins, Beluga Whales, animals that are successfully bred and cared for with their maximum welfare considered, this is what Planet Zoo is about, having all animals have maximum welfare, but also send out a conservation message, all animals mentioned require a decent enclosure in the size and natural design departments. Nothing like larger cetaceans like Killer Whales I wouldn't recommend, neither larger sharks such as Great White and Oceanic White-Tip Sharks that aren't kept in captivity.

All animals can be added to this game, the key point of this subject is the scenario game mode. Nobody says no to a system where we can build giant whale sanctuary with half-water maps for fully aquatic marine mammals, that way even killer whales can get into the game, which is what anti-captivity activists advocate. In this way, there is awareness for killer whales, it fits the message of the game very well. Most people hardly fill even 50% of the map, those who fill more are already experiencing performance problems, half-watered maps would be great for marine mammals.

 

[ElectricMonk]

.... we expect them to handle it with a beautiful scenario, like "whale sanctuary", "sea pen".

It says volumes that, to make this even a bit ethical, you’d have to have a scenario that doesn’t actually resemble a zoo (or aquarium).