Yutii

I do think there is an aquatic wyvern in a mod series called Pyria. It's waterwyvern is a lot like what you think a water wyvern should be! I'd recommend you check it out. :>

The reason why I think that more marsupials should be in ARK is, well, we've only got like three, a flyer's worst nightmare, perry the platypus, and a french bulldog-faced kangaroo. Now, what's my proposal? Some little guys! You can never have too many smol bois, right? My first marsupial I think should be added is the Thylacine, AKA Tassie tiger/wolf! They could be used for herding dodos, Ovis, or megaloceros into enclosures, incubating small eggs in their pouches, and biting the ankles of your enemies, slowing them down and gnashing them a little bit. Remember thylacines are speedy, too, so anklebiting is their specialty here! I've also got Ekaltadeta, the tiny rat-kangaroo! I hate to admit it--I don't have much to work with about the little Ekal, so i'll leave it up to you guys to think of further ideas!