Nautilus - Wikipedia
网页The nautilus shell is composed of two layers: a matte white outer layer with dark orange stripes, [23] and a striking white iridescent inner layer. The innermost portion of the shell is a pearlescent blue-gray.
What’s special about the shape of a Nautilus shell? - EarthSky
网页2013年4月18日 · Who is Fibonacci, and how does his work relate to the shape of a Nautilus shell? Cutaway of a Nautilus shell showing the chambers arranged in an approximately logarithmic spiral.
Nautilus Shell – Minecraft Wiki
网页A nautilus shell is an item that is used for crafting conduits. Nautilus shells can be rarely obtained as a treasure item from fishing. The drop chances of nautilus shells slightly increase with each level of Luck of the Sea on the player's fishing rod.
What is a nautilus? - NOAA's National Ocean Service
网页2024年6月16日 · Unlike its color-changing cousins, though, the soft-bodied nautilus lives inside its hard external shell. The shell itself has many closed interior chambers or “compartments.” The animal resides in the shell’s largest chamber, while the other chambers function like the ballast tanks of a submarine.
18 Facts About Nautilus
网页2023年7月13日 · With its unique coiled shell and close resemblance to ancient marine creatures, the Nautilus holds a significant place in the world of marine biology. Found primarily in the Indo-Pacific region, these cephalopods have been around for millions of years, surviving the test of time.
Chambered nautilus - Wikipedia
网页The chambered nautilus (Nautilus pompilius), also called the 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 .
Nautilus - American Oceans
网页Nautilus is a living fossil that has remained relatively unchanged for over 500 million years. It is a deep-sea creature that feeds on small fish and crustaceans. Nautilus has a unique anatomy that includes a spiral-shaped shell, two large eyes, and a pair of tentacles.
Nautilus - Description, Habitat, Image, Diet, and Interesting Facts
网页Description of the Nautilus. These cephalopods grow their own shells, much like a snail. They can pull themselves all the way inside their shells when threatened, and use two thick tentacles to create a “hood” to block the opening of the shell.
Nautilus | Mollusk, Shell, Subclass | Britannica
网页2024年9月28日 · Nautilus, either of two genera of cephalopod mollusks: the pearly, or chambered, nautilus (Nautilus), to which the name properly applies; and the paper nautilus (Argonauta), a cosmopolitan genus related to the octopus. The pearly nautilus has a smooth, coiled external shell about 25 cm (10 inches)
Chambered Nautilus - NOAA Fisheries
网页2023年2月2日 · The soft-bodied nautilus lives inside a hard, chambered shell. It uses the chambers to pump air and water in and out of its shell, creating jet propulsion to thrust itself backwards and to make turns. They possess a siphon tube, known as a hyponome, which runs the length of the shell.