humpback

The humpback whale is a mammal belonging to the family Cetidae in the order Cetacean. Enlarged body, broad upper jaw, with tumor like protrusions along the central line from the breathing hole to the snout and on both sides of the upper and lower jaws; The dorsal fin is relatively small, located at 2/3 of the posterior body length; The fin limbs are very large, about one-third of the body length, with irregular serrated protrusions on the leading edge; The caudal fin is wide and the outer edge is also irregularly serrated; There are fewer folds and grooves on the ventral surface, ranging from 14 to 35, extending from the lower jaw to the front of the navel. The back is black with black stripes, the abdomen is black or white, and the body color varies greatly among individuals; There are more white parts above the fins than black parts, and white parts below; The ventral surface of the caudal fin is white, with black edges.