Birds
D.C. Duck Butts – Featured Artist – Maria Bianca Nevada
- Cloaca – Wikipedia
In zoological anatomy, a cloaca is the posterior opening that serves as the only such opening for the intestinal, reproductive, and urinary tracts of certain animal species. All birds, reptiles, and amphibians possess this orifice, from which they excrete both urine and feces, unlike placental mammals, which possess two (or three) separate orifices for evacuation.
Future Bird Fossil – Haiku – Summer 2010 – Spring Lake, NJ
Future bird fossil
Waits silently for the ash
To settle and set
- Fossil birds – Wikipedia
- Early bird fossils – Access Excellence
- Dino Era Bird Fossil Found – National Geographic