You can find an overview of stelar evolution in the Wikipedia article entitled "Stellar evolution".
underground
2 examples of convergent evolution among caminacules
Google images
In science books or on the internet.
google.
www.pokemonserebii.net
you have to evolve the lower evolution
you can't
Find them xD
You can find evolution stones is various places. If you have beaten the Elite Four, go to the Pokeathlon Dome. In the prizes section, there will be evolution stones. Compete in competitions to earn enough points for the one you want.
it is Tentacruel