Cetacea and two (external) limbs that are modified into flippers. Though not as flexible or agile as seals, cetaceans can swim very quickly, with the killer whale able to travel at in short bursts and the fin whale able to cruise at . Dolphins are able to make very tight turns while swimming at high speeds. The hindlimbs of cetaceans are internal, and are thought to be vestigial. Baleen whales have short hairs on their mouth, unlike the toothed whales. Cetaceans have well-developed senses—their eyesight and hearing are adapted for both air and water, and baleen whales have a tactile system
Oh Dear! What Can the Matter Be? the matter be? Oh, dear, what can the matter be? Parents don't visit the school. They visit the circus, they visit their neighbors; They visit their flocks and the servant who labors; They visit the soldiers with murderours sabers; Now, why don't they visit the school? They care for their horses, they care for their dollars; They care for their parties and fancy fine collars; But little, we think, do they care for their scholars; Because they don't visit the school. We know we from hunger and cold are protected; In virtue and knowledge our minds are directed; But still