new mobs and pets

In Minecraft there are many animals which are useful, cows for milk, sheep for wool used for creating beds, pigs for rides with a carrot attached to a fishing rod and so on. Many can be pets as well, for example, cats, dogs, parrots, axolotls, fish and more, some of them serve a purpose, when you are about to sleep, the cat crawls on top of you and sleeps, and when you wake up there is a random item and dogs can be used to hunt and kill animals, camels for riding and when riding, hostile mobs are unable to attack you due to height difference, and it carries two players, a horse for riding fast and jumping high, and a owl. An owl can be used for many things, killing rabbits and bringing their droppings to you, collecting items at night while you sleep (for this, you must send the owl out) and finding them in your chest, barrel and such. Owls can also be used to send messages from far away, and with owls villagers can also have a new purpose, this new purpose is to send specific items, for this, you need emeralds and a book & quill, write down the items you need, and give the emeralds and book to the owl, the owl will travel either long or short distances depending on the nearest village, it will then find the villager which is liable to give the items and come back to you when the items are received, with the owl can also come a new furniture/item, a small stand, owls vary depending on the region, snowy biome-snowyowl There is much more I want to expand on but this is the max.