VIEW IN MY ROOM
United States
Select a Material
Fine Art Paper
Select a Size
10 x 10 in ($40)
Add a Frame
White ($80)
Artist Recognition
Artist featured in a collection
The anus (from Latin anus meaning "ring", "circle") is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to control the expulsion of feces, the residual semi-solid waste that remains after food digestion, which, depending on the type of animal, includes: matter which the animal cannot digest, such as bones; food material after the nutrients have been extracted, for example cellulose or lignin; ingested matter which would be toxic if it remained in the digestive tract; and dead or excess gut bacteria and other endosymbionts. Amphibians, reptiles, and birds use the same orifice (known as the cloaca) for excreting liquid and solid wastes, for copulation and egg-laying. Monotreme mammals also have a cloaca, which is thought to be a feature inherited from the earliest amniotes via the therapsids. Marsupials have a single orifice for excreting both solids and liquids and, in females, a separate vagina for reproduction. Female placental mammals have completely separate orifices for defecation, urination, and reproduction; males have one opening for defecation and another for both urination and reproduction, although the channels flowing to that orifice are almost completely separate. The development of the anus was an important stage in the evolution of multicellular animals. It appears to have happened at least twice, following different paths in protostomes and deuterostomes. This accompanied or facilitated other important evolutionary developments: the bilaterian body plan, the coelom, and metamerism, in which the body was built of repeated "modules" which could later specialize, such as the heads of most arthropods, which are composed of fused, specialized segments.
Print:Giclee on Fine Art Paper
Size:10 W x 10 H x 0.1 D in
Size with Frame:15.25 W x 15.25 H x 1.2 D in
Frame:White
Ready to Hang:Yes
Packaging:Ships in a Box
Delivery Time:Typically 5-7 business days for domestic shipments, 10-14 business days for international shipments.
Handling:Ships in a box. Art prints are packaged and shipped by our printing partner.
Ships From:Printing facility in California.
Have additional questions?
Please visit our help section or contact us.
United States
Self-taught artist that has my own style. Abstract. New Media. Digital. Sometimes I paint with acrylics/fluid.
Artist featured by Saatchi Art in a collection
Thousands Of Five-Star Reviews
We deliver world-class customer service to all of our art buyers.
Global Selection
Explore an unparalleled artwork selection by artists from around the world.
Satisfaction Guaranteed
Our 14-day satisfaction guarantee allows you to buy with confidence.
Support An Artist With Every Purchase
We pay our artists more on every sale than other galleries.
Need More Help?