Some from the Singapore Zoo, shot with Nikon D3, 70-200 VR2 and a rented TC-20e III. Quite a useful combo, although one must be very careful using the TC with a Blackrapid-style strap. As it dangles upside down, the lens release button could easily be accidentally depressed, releasing the lens (don't think you'll be carrying anything heavier than a 70-200/2.8 this way though) onto the ground behind you. Had a couple of close-calls over the course of the day
Anyway, here are the shots.. Tried to shoot and edit with a theme of "Animal emotions/expressions" in mind..