The Mega Evolution update in Pokémon GO available globally; Mega Kangaskhan Raid Day to take place on May 1st : Bulbagarden

What very rare Pokémon have you caught/seen? - Quora

Pokémon: Let's Go, Pikachu! and Let's Go, Eevee! - Bulbapedia, the community-driven Pokémon encyclopedia

Pokemon 8045 Mega Vileplume Pokedex: Evolution, Moves, Location, Stats

Walking Pokémon - Bulbapedia, the community-driven Pokémon encyclopedia

New Info - Mega Gengar and Costume Gengar added : r/TheSilphRoad

Reminder: Mega Kangaskhan Raid Day now live in Pokémon GO

My 2020 Bedrill transforms from XL (1.26m) to XXL (1.66) when mega evolved : r/TheSilphRoad

Mega Evolution update available globally, and Mega Kangaskhan joins the fray!

Mega Evolution and Mega Raid Updates

A Mega Moment: Complete Event Guide

Mega Evolution (GO) - Bulbapedia, the community-driven Pokémon encyclopedia