sp = Specie("Name",B,R,D)
#B: Spontaneous Birth Rate
#R: Replication Rate
#D: Death Rate

pop = Population(sp, N)
#sp: Specie
#N: Number of existing creatures at time 0

for _ in range(T):
        pop.progress()
#T: Number of iteration for you population to evolve
#pop: Population

app = App()
app.displayPop(pop)
app.mainloop()
#pop: Population to display

#Red Curve: Evolution Prediction
#Black Curve: Evolution of your Population

app = App()
app.displayPop(pop, Q)
app.mainloop()
#Q: Number of population to get an average curve

#Green Curve: Average of the N populations with same specie and same existing creatures at time 0