Portable Network Graphics (PNG) is a common and established image standard that is widely supported in applications that view images, including Internet Explorer. 5 adds support for Microsoft Word 97 and Excel 97, Lotus 1-2-3 97, Freelance 97, and Portable Network Graphics (PNG) files.
The chambered nautilus, Nautilus pompilius also called pearly nautilus, is the best-known species of nautilus.The shell, when cut away, reveals a lining of lustrous nacre and displays a nearly perfect equiangular spiral, although it is not a golden spiral.he eyes of the chambered nautilus are more primitive than those of some other cephalopods; the eye has no lens and thus is comparable to a pinhole camera.
The nautilus (from the Latin form of the original Greek Î½Î±ÏÏÎ¯Î»Î¿Ï, 'sailor') is a pelagic marine mollusc of the cephalopod family Nautilidae, the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina.owever, most nautilus species never exceed 20 centimetres (7.9 in). Nautilus macromphalus is the smallest species, usually measuring only 16 centimetres (6.3 in). A dwarf population from the Sulu Sea (Nautilus pompilius suluensis) is even smaller, with a mean shell diameter of 115.6 mm.