Do you want to improve the behavior for bears and some new behaviors for pandas?Then this add-on definitely for you! My project will change life for all bears, and specially added new types for bears!

Lets’s see what this project have)

Be sure to enable experimental gameplay!!!

• Added new bears!(black bears and grizzly bears, you can find them in taiga biome; gray bears, you can find them in jungle and bamboo forest biomes!), Also polar bears have changes in face, claws texture!
• Black bears, gray bears, grizzly bears, polar bears now can pick up items and eat them, like a fox! But babies not pick up items and eat them! Here full list of items, which they can eat and pick up them: [apple, beef, bread, chicken, clownfish, cooked_beef, cooked_chicken, cooked_fish, cooked_porkchop, cooked_salmon, cookie, dried_kelp, fish, golden_apple, golden_carrot, honeycomb, melon, mushroom_stew, mutton Cooked, mutton Raw, pork-chop, pumpkin_pie, salmon, suspicious_stew, sweet_berries]
• Polar bears after death not dropping fishes now, only carried item in his mouth, this also applies to black bears, gray bears, grizzly bears!
• Wild bears now can randomly sit and sleep day time,and when rain,but they not sleep in night time,and when thunderstorms[in day:under the tree,or if there are whole block above them, and in the caves]
• When tamed black bears, gray bears, grizzly bears, polar bears sleep, and if there are pandas, players and tamed mobs around them, they don’t wake up(but wild bears wake up, when tamed mobs around them!)
• Tamed bears can sleep in day, night, thunder, rain! They like sleep a lot 
• Tamed bears have 60 hp, wild bears have 30 hp
• Wild bears attack illagers, ravagers, vexes, fishes(except of pufferfish), and they not attack baby foxes now
• Wild bears will have an angry look when their enemies are near
• Tamed bears will attack your enemies only when they hit you, if player hit enemies they don’t attack!
• Tamed bears only sit if you told them to sit(when your bear tamed,give him command to sit,then stand if you want them sit again you need use crouching), also tamed bears have 3D collars, you can dye them!
• You can ride tamed bears(first give command to sit and then give them command to stand, and now you can ride them, but sit command will work after that only, when you use crouching), also you can put saddle on tamed bears, they don’t have inventory and drop saddle only when died)
• Saddle will change texture when tamed bears sleep
• Tamed bears have a special texture for saddle
• Wild and tamed baby bears can grow,if you feed them next items: [clownfish, cooked_fish, cooked_salmon, fish, honeycomb, salmon, sweet_berries]
• Wild and tamed bears can be tempted,if you have in your hands next items: [clownfish, cooked_fish, cooked_slamon, fish, honeycomb, salmon, sweet_berries]
• Tamed bears don’t take damage from falling!
• Ravagers avoiding bears(expect pandas)
• Wild bears can be tamed,if you feed them cookies(babies can’t tamed,you need first grow them, then feed them cookies), if tamed bears have a baby, texture for baby head wil change with tamed look, but tamed baby will ignore you, you need grow him, and give him cookies, and after that bear now your pet)
• Tamed can be heal with next items: [apple recover 10 hp, beef recover 20 hp, bread recover 20 hp, chicken recover 20 hp, clownfish recover 20, cooked_beef recover 30 hp, cooked_chicken recover 30 hp, cooked_fish recover 30 hp, cooked_porkchop recover 30 hp, cooked_salmon recover 30 hp, cookie recover 30 hp, fish recover 20 hp, mutton Raw recover 20 hp, mutton Cooked recover 20 hp, pork-chop recover 20, salmon recover 20 hp]
• Bears now use delayed attack, polar bears have small changes in attack animation, new bears also have attack animation
• You can leash new bears
• Bears can be stolen, when leashed
• You can leash pandas now
• Pandas can eat  more items now and tempted with them,also can drink now!(babies can be tempted and grow only with apple, bamboo, cookie). Full list of items: [apple, bamboo, bread, cake, clownfish, cooked_fish, cooked_salmon, cookie, fish, honey_bottle, honeycomb, egg, melon, pumpkin_pie, salmon, sugar, sweet_berries, reeds(sugar_canes)]
• Pandas can sleep in night time(also when rain and thunderstorm), they can sleep in day time(when thunderstorm), they not wake up if players, bears, tamed mobs around them!
• Pandas can sleep together with others bears!
• Aggressive pandas and worried pandas can’t sleep
• Pandas have an angry look when you or mob hurt them
• Pandas use delayed attack now,and have attack animation!
• Pandas have brows now in textures!
• Fixed panda sneezing animation! 
• Fixed panda thunderstorm animation!
• Fixed leg position to liying baby pandas!
• Fixed position to body when panda sit(in vanilla her body was a little in the ground
• Now pandas use head rotation “-90” when sitting(in vanilla her head use rotation “-100”
• Ears now animated for all animations to pandas!
• Movement for lying pandas now “0.16”
• When baby panda sneezing, he have a better chance to drop slimeballs now

Downloads

• Behavior.mcaddon
• Resource.mcaddon