I wanted to display a normal distribution curve and entered in Wolfram Alpha: normal distribution mean = 0 sd = 1 (see screenshot wa.png)

I then used free input in Mathematica and copy and pasted the same input. I chose PDF, which resulted in
PDF[NormalDistribution[0,1],x] I then selected plot which gave me an entirely different curve (see screenshot w.png).

What went wrong?

(Mathematica Output first, then Wolfram Alpha Output)