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1.
Breloom has a unique typing.
Virizion & Chesnaught are also Grass/Fighting.
2.
Corsola cannot be male.
25% Male, 75% Female
3.
There are more Bug type gyms than Rock type gyms.
3 Bug type gyms, 5 Rock type gyms
4.
Drowzee has fewer type weaknesses than Joltik.
Drowzee is weak to Bug, Dark & Ghost, Joltik is weak to just Fire & Rock.
5.
Dratini is taller/longer than Sceptile.
Dratini is 5'11'', Sceptile is 5'7''.
6.
There are no Pokemon of type Normal/Ground.
Diggersby.
7.
Zubat (and its evolutionary line) have a unique typing.
8.
Heatran has a unique typing.
9.
There are more male gym leaders than female.
10.
The three rarest Pokemon types are Ice, Ghost and Dark.
The three rarest types are Ice, Ghost and Fairy.
11.
Farfetch'd evolves into Sirfetch'd by landing three critical hits in one battle.
12.
Galarian Meowth evolves into Perrserker when it earns 100 Pokedollars in one battle (through using Pay Day).
It evolves at level 28.