Seadra generates whirlpools by spinning its body. The whirlpools are strong enough to swallow even fishing boats. This Pokémon weakens prey with these currents, then swallows it whole. It is capable of swimming backwards by rapidly flapping its winglike pectoral fins and stout tail. Its body bristles with sharp spikes. Carelessly trying to touch it could cause fainting from the spikes.
Pokédex entry #117
seadra in Pokémon GO
It's possible to hatch seadra from an egg?
No, seadra can't be hatched.
How many CP would seadra have after evolving?
If you’ve catched a seadra and you want to know how many points it would have after evolving, use this evolution calculator and find out easily. You just need to write your Bulbasaur CP and then click “Evolve”.