You can watch the program from whatever country after it's broadcast in the UK by logging in to the demand five iplayer using the link provided above by Becca. You won't be able to d/l the program but you can watch it by selecting it in the documentary section-extraordinary animals and clicking "'play". I just finished watching an interesting episode on the intelligence of corvids from the same series which was broadcast a couple of weeks ago
Sorry about that -- I hadn't read Five's terms and conditions. With the BBC iplayer, you can view a program from outside the UK but it is illegal to d/l it. I assumed that the same was true with Demand Five.