orang

It is large in the anthropoid apes, especially in the orang, in which it is very long and spirally convoluted.

It is shortest in the chimpanzee, somewhat longer in the gorilla, still longer in the orang, and remarkably long in the gibbon.

As regards the other anthropoid species, Wallace's observations on the habits of the orang are of interest.

Here then are two animals, the pithecos and the orang-outang, which must be ranked among the ape kind.

Man, and the orang-outang, are the only animals which have calfs to their legs, and their posteriors formed for walking erect.