The Hydra is a new Apex tier animal for the Swamp. It has a super quick health regen, immunity to normal poison (like most swamp animals), but it can spit Concentrated Venom which can even hurt other swamp animals. Also, it spits three balls of concentrated venom.
Normal Venom:
Concentrated/Hydra Venom:
I have created a map with new biomes. I haven't decided all of the animals yet but I have moved the apex tiers around.
Here is the Plain Map:
The Green is obviously Grassland, Yellow is Desert, Red is Volcano, Dark Green is forest, Greenish Blue is Swamp, Blue is the Ocean, Dark Blue is Deep Ocean, Whitish Blue is the Arctic Ocean, and Light Blueish White is the Arctic.
The Apex Tiers for all Biomes: