Balaenids are also robustly built by comparison with the rorquals, and lack the grooves along the throat that are distinctive of those animals. They have exceptionally large heads in comparison with their bodies, reaching 40% of the total length in the case of the Bowhead Whale. They have short, broad, flippers, and lack a dorsal fin.
All species are at least somewhat migratory, moving into warmer waters during the winter, during which they both mate and give birth. Gestation lasts 10-11 months, results in the birth of a single young, and typically occurs once every three years.
Research from University of Medicine and Dentistry of New Jersey (UMDNJ) Has Provided New Information about Visual Neuroscience.
May 08, 2012; According to the authors of recent research from Newark, New Jersey, "Our current understanding of the spectral sensitivities of...