Ideas for new mobs

                                                                     INTRO:

There should be more mobs in every biome. I created the post 

1. YOU SHOULD DEFINITELY ADD MORE DRAGONSSSS!!!!!!!

and I believe it would make for a very exciting and interesting theme in the game. Now, onto the REAL stuff.

FIREFLIES:  We all know we have firefly bushes now, but what about the actual things? Fireflies can light up a space after you catch them with a net and put them in a jar.

DEER: We have snow, polar bears, goats, and even strays, but deer can be found in almost any biome. There are stags too. They drop antlers that you can craft onto helmets, and when worn, they have a swiftness effect! They can be found in herds of 4-10, often with at least one stag, doe, juvenile, and fawn. You can also tame them with an apple, poppy, or sweetberry. You also may ride them like a horse. AND THEY WILL NAP WITH A CUTE ANIMATION!!!!!! 

JELLYFISH: Just a cute little ambient feature, and they have different variants, too. And they also drop  A JELLYFISH HAT!!

OWLS: Owls would make an appearance, a necessary feature to that one spooky build you never quite finished. They spawn in spruce, dark oak, and any other forest biome. You can tame them with raw\cooked chicken and seeds.

That's all for now, but please.PLEASE. PLEASE.PLEASE.  Make this happen. Now Byyyeeeeeeeee.