Here are some photos from a visit to Sydney's Taronga Zoo last weekend.  I like the idea of more intimate portraits to show a more personal side of the animals.  Almost all the shots were taken at the widest aperture my 70-300mm could muster and a shutter speed of 1/1000s.  This left my Pentax K5D to decide the ISO, which was often as high as 5000 and yet the quality was still exceptional.