Je suis un oiseau.

Ni l'abeille, ni la baleine.

Il mange une abeille.

I'm not sure when I'll be using those phrases, but if Duolingo is trying to make learning French memorable, it has succeeded. When I picked up the app, I wasn't expecting much--there was no way an iPhone app could teach me a language I had no knowledge of. Two months of using Duolingo later, I'm willing to admit I was wrong. While it's not a substitute for classroom learning, Duolingo is a useful way to start learning a language on your own time and at your own pace.