Birds and reptiles also lay eggs. N.C. State University researcher Mary Schweitzer discovered a medullary bone in the leg of a Tyrannosaurus rex. Birds use this bone to store extra calcium for egg production [source: Fields]. Researchers have found fossilized eggs in locations around the world...
Most white egg laying breeds are very active but have little meat Many very old breeds are tremendous foragers, but will grow more slowly Others are fast growers Others come in fascinating colors that help them avoid predation A good personality is a trait often overlooked when choosing a breed...