Adena culture Spoons, beads and other implements were made from the marine conch. A few copper axes have been found, but otherwise the metal was hammered into ornamental forms, such as bracelets, rings, beads, and reel-shaped pendants. Adena culture The Adena culture was a Pre-Columbian Native American culture that existed from 1000 to 200 BC, in a time known as the Early Woodland period. The Adena culture refers to what were probably a number of related Native American societies sharing a burial complex and ceremonial system. The Adena lived in an area including parts of present-day Ohio, Indiana, Wisconsin, West Virginia, Kentucky,
Shell-less chick embryo culture Shell-less chick embryo culture Shell-less chick embryo culture is the process of growing chick embryos "in vitro", without their protective egg shells, for scientific observation. Chick embryos and other avian embryos have been biological models to visualize the developmental stages of embryos for education and to instigate embryological manipulations. Using this technique, observations can be made, whether it is a induced-malformation caused due to effect of teratogens or the route of viruses inoculations such as HIV or herpes simplex. Furthermore, preservation of endangered avian and development of transgenic birds using surrogate egg shell culture have been contrived by scientists across