Until 2009, it was considered a subspecies of Python molurus, but now is recognized as belonging to a distinct species. They are often found near water and are sometimes semi-aquatic, but can also be found in trees. Wild individuals average 3.7 m (12.1 ft) long, but have been known to reach 5.74 m (18.8 ft).he African rock python can generally be distinguished by its tighter pattern of markings, compared to the Burmese python, which has bolder patterns, similar to those seen on a giraffe. In the wild, Burmese pythons grow to 3.7 m (12 ft 2 in) on average, while specimens of more than 4 m (13 ft 1 in) are uncommon.
The brown tree snake (Boiga irregularis) was accidentally introduced to Guam in the late 1940s or early 1950s, probably from the Solomon Islands. Native to northeastern Australia, eastern Indonesia, and Melanesia, the brown tree snake has signiï¬ cantly damaged the economy and ecology of Guam.
Brown Tree Snake, Boiga irregularis, note the large eye with a vertical pupil. The Brown Tree Snake has a large head with eyes that are large and protruding with vertical pupils. The head is distinct from the narrow neck. They are brown above with ragged-edged, darker cross bands on the back and sides (eastern Australia). Northern Australian specimens are cream with bold reddish bands.