Craniate with well-defined heads, thus excluding members of the chordate subphyla Tunicata (tunicates) and Cephalochordata (lancelets), but including Myxini, which have cartilaginous skulls and tooth-like structures composed of keratin. Craniata also includes all lampreys and armoured jawless fishes, armoured fish, sharks, skates, and rays, and teleostomians: spiny sharks, bony fish, lissamphibians, temnospondyls and protoreptiles, sauropsids and mammals. The craniate head consists of a brain, sense organs, including eyes, and a skull. In addition to distinct crania (sing. "cranium"), craniates possess many derived characteristics, which have allowed for more complexity to follow. Molecular-genetic analysis of craniates reveals that, compared to less complex
What Have We Learned, Charlie Brown? What Have We Learned, Charlie Brown? What Have We Learned, Charlie Brown? A Tribute is the 26th prime-time animated television special based upon the comic strip "Peanuts," by Charles M. Schulz, who introduced the special. It originally aired on the CBS network on May 30, 1983, Memorial Day in the United States, and one week prior to the 39th anniversary of the D-Day Invasion. It aired on CBS only one other time, on May 26, 1984, which was the Saturday before Memorial Day, and ten days prior to the 40th anniversary of the D-Day Invasion. The special directly follows the