Fireflies: Only spawn at night, mostly atmospheric/decorative, provides some light. Can be caught in a glass jar.
Recipe: All squares in crafting table filled with glass jars, makes a light block slightly brighter than glow-stone.
Great job with the snakes and the design, but I feel they serve little purpose. Maybe you can add some snakes to be hostile (cobras and rattle snakes), some to be only hostile when attacked (python) and others friendly or shy like currently. Make this a warning, because if these do become hostile, it would be annoying unless the spawn rate is low.
If your next animal is a monkey make them to climb on jungle trees and only hostile if attacked, and breed-able would be most appreciated.
One last note maybe try adding wasps and wasps nest, rare but hidden under tree branches in big forest. If you attack the nest the whole swarm comes after you. but if you destroy the nest you get honey which can be edible to heal you. Bears are also attracted to the nests.
What I think you should add are:
-Dragons, rideable, they should hunt mobs like sheep or cows. it should attack with fire
-big bird such as eagles and hawks
i would enjoy mobs like this please add some
I would love this mod sooo much more if there were ground/tree squirrels (also probably some gliding squirrels), and ostriches.
And maybe flying villagers with floating island villages (that are shadowless probably).
I would love to see an elephant cause all the elephant mods i have seen are stupid they are just a grey rectangle that has a trunk. Elephants are big so should be rare but only appear in jungle and maybe deserts.
I know this first one would be hard to do but,
Dragons of different colours, mountable,flyable, rare
Echidnas, drop spikes for daggers or somthing
Ghosts/phantoms only appear in dungeons or abandoned mine shafts very uncommen
Another type of creeper that explodes and set fire to things and another that explodes and gets larva every where - rareish/ very uncommen
Pheonix- attacks like blazes exept neatural and fly in deserts very bright at night, also rare
an extremly rare ailien creature that is insanely hard to kill, but drops diamonds or somthing... Well they're my ideas XD
You can add Hamsters! They are like the mice and rats, but are actually Tamable! you can have a new item/block that is a "Glass Cage" that you can pick the Hamster up and than click on the cage. If you placed two, or more, cages next to each other than you could make the cage even bigger! The cage could even hold other small animals like geckos and such. (The Hamsters would have to be REALLY small cause the dwarf hamsters are the cute ones ). I think that it would be a cool way to help decorate you home or where ever you live! Hamsters would be a great addition to the mod! Hamsters could be found in almost any Biome and the live in caves/burrows (very true), but are most common in the Desert and Grassland biomes!
Idea for glass cage crafting recipe: (D= Dirt, G= Glass, and P=plank) The color of plank used would change the color of the "lid" and the "base" of the cage. Also the glass could, and should, be glass panes instead.
G P G
G - G
P D P
I hope someone likes this idea and I hope even more that it could be thought of to be put into the mod itself.
P.S. (If this is taken into mind, try to make them look EXTREMELY cut, because they are in real life.)