Here is a concise summary of the text:
**Rarest Mobs in Minecraft:**
* The video showcases various rare Minecraft mobs, including:
+ Zombie Pickin ( glitched mob, extremely rare)
+ Invisible Spider (2% chance)
+ Fast Horse (1 in 8 million chance)
+ Killer Chicken ( existed in one version only)
+ Baby Pink Sheep (0.008% chance)
+ All-Black Tropical Fish (cannot spawn naturally)
+ Skeleton with Full Diamond Armor (0.003% chance)
* **Rarest Mob in Bedrock Edition:** Baby Husk riding a Brown Panda with enchanted gear (1 in 3.5 trillion)
* **Rarest Mob in all of Minecraft:** Left-Handed, Pumpkin-wearing, Enchanted Zombie Villager Jockey in an Abandoned Village on Halloween (1 in 66 followed by 96 zeros)
Here are the key facts extracted from the text, each with a number and in short sentences:
**Mob Spawning Facts**
1. A Zombie Pickin mob is created by a bug when a chicken jockey and a pig spawn together with a zombie.
2. Invisible spiders have a roughly 2% chance of spawning.
3. Horses have a 1 in 8 million chance of spawning with extra speed, allowing them to travel over 14.5 blocks/second.
4. Killer Chickens existed in only one Minecraft version, with a unique attack behavior.
5. Baby Pink Sheep have a 0.008% chance of spawning, making them 20 times rarer than normal Pink Sheep.
**Mob Behavior and Variants**
6. Tropical Fish have a 10% chance of spawning with completely random pattern sizes and colors, resulting in over 3,500 visually distinct variants.
7. No tropical fish naturally spawn with the color black, making the all-black variant the rarest.
8. Skeletons can spawn with pieces of armor, but the chances of a full diamond armor skeleton are extremely low (later revealed to be around 0.003%).
9. Leader Zombies have a 5% chance of spawning and can summon reinforcements.
10. Baby Piglens and Hoglins are not enemies, and a baby piglet has a small chance to ride a baby hoglin.
**Rare Mob Encounters**
11. The chances of a Strider riding another Strider are 10%, but finding an infinitely long "Tower of Striders" is nearly impossible.
12. A baby piglet riding a baby hoglin has an extremely rare possibility of occurring in triples.
13. An Evil Iron Golem can attack its own villagers if damaged by a firework explosion after a raid.
14. The Melon Golem had a 1.1% chance of spawning and was a melon variant of the Snow Golem.
**Probability-Based Facts**
15. The chances of a Natural Charged Creeper spawning are about 1 in 25,660,000.
16. Finding a Snow Golem spawned by an Enderman is extremely rare, with odds of 1 in 5 trillion.
17. A Villager Chicken Jockey can only be obtained by curing a Zombie Villager Jockey.
18. A specific baby zombie mob (riding a rare brown panda, with full enchanted diamond armor and iron sword) has a chance of about 1 in 3.5 trillion in Bedrock Edition.
19. The rarest mob in all of Minecraft is a Left-Handed, Halloween-themed, Zombie Villager Jockey with a pumpkin, enchanted armor, and iron sword, with odds of 1 in 66 followed by 96 zeros.