As part of its ongoing efforts to promote every single Pokémon out there, The Pokémon Company has shared special content dedicated to Mewtwo and Mew:
Did you know? Its DNA is almost the same as Mew’s. However, its size and disposition are vastly different.
Source: @Pokemon
Pokémon Blog 
3 thoughts on “Pokémon 151: We’ve been blessed with a rare Mew sighting”