Talk:Lost River/@comment-68.42.118.52-20170115035200

If the Lost River Leviathan is related to the Sea Dragon Leviathan, then why doesn't it have arms? You may say that since it's a fossil, they may have rotted away or broken apart, but there's no visual evidence in the biome that suggests it had arms in the first place. Unless the developers say otherwise, I think the Lost River Leviathan is a completely separate creature altogether and its similarities to the Sea Dragon Leviathan are purely coincidental. After all, nature has shown us that convergent evolution, the process where two unrelated animals develop the same features for the same purposes, is possible. (ex: dolphins and bats use echolocation to hunt prey)

In addition, that's not a fossil because of how bodies decay in the ocean. In the ocean, oxygen deprivation and the natural salinity can preserve a skeleton for long periods of time, especially if it gets buried underground, before marine organisms break it down. In Subnautica's case, the skeleton sits underground in the coldest known biome and is bathing in a pool of brine, which is so salty that it acts like water within water. Combined with its Godzilla-like size and the fact the Lost River is literally a natural coffin due to having no water circulation, this skeleton has been likely sitting there undisturbed for thousands if not millions of years.