When Sentret sleeps, it does so while another stands guard. The sentry wakes the others at the first sign of danger. When this Pokémon becomes separated from its pack, it becomes incapable of sleep due to fear. It stands on its tail so it can see a long way. If it spots an enemy, it cries loudly to warn its kind. When acting as a lookout, it warns others of danger by screeching and hitting the ground with its tail.
Pokédex entry #161
Sentret in Pokémon GO
It's possible to hatch Sentret from an egg?
No, Sentret can't be hatched.
How many CP would Sentret have after evolving?
If you’ve catched a Sentret 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”.
Which are Sentret’s strengths and weaknesses?
Sentret is a normal type Pokémon. normal type pokémons but weak against rock pokémons. They are not affected by ghost type pokémons.