After looking at the two pictures side by side I am convinced it is the same elephant animatron. The IOTD image was taken when the site was newer and the ferns and moss hadn't grown up yet- that is why it looks "redder". But if you look at the height on the elephant where the rocks in the IOTD pic have seams, and look carefully under the waterfall on the Jungle ride pic, the lines are at the same height.
Also the "arms" are in the same wierd position. and the inner mouth looks the same.
www.wdisneyw.co.uk/ photomkjc3.html has three photos of the attraction (low resolution). It looks like there is a duplicate waist deep in water in one of them.
www.planetbr.com/ adve.html shows the rocks.
www.mousehouseradio.com/ photos.htm has a good closeup