Any way of saving audio sent via Whatsapp?

I've been sent a couple of audio recordings taken at our choir rehearsal, so that I can send them to the rest of the choir by email.

Problem is that they sent me the audio clips by Whatsapp, and I don't find a way to save such clips to any other place of the iPhone (GoodReader included), nor to forward the files by email.

Is there any way of getting these clips out of Whatsapp?

The guy who sent me it is an Android user, and I'd prefer to avoid having to tell him to send me the clips again in other way "because I've an iPhone"...

Thanks a lot if you've some idea!!