***Lish = Land + Fish
I've included few saved games and some accompanying notes (that I took for my own "fun" historical records).
All of these involve the Tailio long term survivor species, who are the first real and non-glitched surviving Lish species.
The recently updated "Lish, a Land Fish Above Water Guide" section of my Ecosystem Steam Guide gives some key settings and pro tips on how to more effectively Lish without modding.
https://steamcommunity.com/sharedfiles/filedetails/?id=2461747247

Feel free to check out the base land save maps that these save games are based on at https://www.nexusmods.com/ecosystem/mods/5
These species and base terrains can be downloaded from the Steam Workshop.

*Some of these maps are older map saves that might be larger and slower to load than you are used to with modern saved maps.

Save: glTailio905.dat
Type: Game, Land
Time/Generations: 97, 8-12
Desc: Sample of a Tailio land game with flat rolling hills


Save: gTailio017.dat
Type: Game, Land
Time/Generations: 370, 29-31
Desc: rolling hills; Tailio are confined to the valley since they can not climb


Save: gTailio617waterfixed.dat
Type: Game, Water
Time/Generations: 470, 27-34
Desc: land map with open flat area to see how Tailio does; has a tower in the SW


Save: gTailio616.dat
Type: Game, Land
Time/Generations: 470, 27-34
Desc: copy of (gTailio617waterfixed.dat) where it glitched and this map had water unintentionally added and did not negatively affect the creatures like usual when water is instantly added to them; this gives an interesting perspective of the exact same creatures (not respawned) in the same environment with Land vs Water


Save: LishMating077.dat
Type: Creative, Land
Time/Generations: 1506, 674-678
Desc:
    -a map and extended game play trying to improve Tailio mobility
    -a base Tailio species were converted to Mass reproduction
    -spawned in the middle Paddock of my land map
    -started with the middle paddock 100% plant density
        -over time, reduced the plant density to what it is now
        -this can be seen in the Plant graph, especially the huge plant reduction by 72% around 12,000t
    -started with the normal 100% flat and smooth terrain surface that comes in the middle paddock
        -over time, added different types of shallow holes, low hills, and a large mound in the center that they have to traverse to mate and survive

Findings:
    -both graphs stop displaying graph data at 1400, but continued moving on the T axis and displays current time if hovered over
    -Tailio are great survivors, even on top of the map+plant changes when predators were spawned in, including a new species of predator Tailio multiple times
    -without doing detailed timed comparisons, I would say that they did improve going over uneven terrain, however only slightly and they still don't normally even go all the way up on the mating platform, a new test could be done with a wider mating platform to force them to have to climb the hill more
    -the continuations of this map that I did proved unfruitful, continuing to make the holes/hills larger and/or reducing plants further negatively affected the populations to the point that running long term unattended sessions were not viable due to high risk of extinction