Very impressing!
Seeing as how this was a solo project, you did a great job on creating this flash all on your own.
You also did a good job on choosing which music to use for this movie (it must of been hard since there are thousands of songs to choose from on NG).
I especially like how you decided to title this "Extinct" even thou the meaning of the title doesn't show up until th-...well you know what I mean *avoiding spoilers*. There's also the use of using a common animal and showing it being extinct a thousand years later (which is probably unthinkable today but who knows?).