common iguana: large herbivorous tropical American arboreal lizards with a spiny crest along the back; used as human food in Central America and South America
vertebrate: animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium
bucksaw: a saw that is set in a frame in the shape of an H; used with both hands to cut wood that is held in a sawbuck