I have a problem with the cohabitation in jwe2, and its just the fact that the species dont really interact or serve a purpose to be cohabiting.
So I think mutualism is a good idea to actually give this a use:
Scavengers cleaning teeth:
We saw this in Dominion, and it happens IRL with birds and crocodiles, so I think this would be a good thing
Suchomimus and Baryonyx working together to catch bigger fish:
We know Baryonyx can swim and that the deep water spawns fish, so what if the Baryonyx and Suchomimus helped each other catch a big one
Anurognathus and Jeholopterus eating insects off of Sauropods and other herbivorous species backs:
Jeholopterus and Anurognathus dont have much life, so if they did this it would make it better
Carnivores protecting mutual species abbies from predators
Allosaurus and Ceratosaurus can cohabit, so what if they protected their babies, this happens sometimes in the world. Other carnivores that can cohabit are Carnotaurus and Albertosaurus and/or Metri, might be more, correct me if im wrong
Indomimus Rex helping raptors hunt larger prey
Raptors taking down huge hadrosaurs dosent make to much sense, so what if they got the help from the indomimus rex to take down the huge prey
Spinoraptor helping raptors get things that swim
I believe Spinoraptors can and will swim in jwe3, so what if they caught other things that swim and drag it to shore to share with the Velociraptors.
I hope you like my ideas 😁