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? exaggerates one common trait (one so thin she falls through a knot-hole). Suggested alternate lyrics include: <poem> Oh, dear, what can the matter be, Six old maids were stuck in the lavat'ry, They were there from Sunday till Saturday, Nobody knew they were there The first one in was fat lady Humphreys - squeezed herself down and she said "it's quite comfy" but when she was through she could not get her bum free – and nobody knew she was there. Refrain The next one there was old lady Grayson – she couldn't get in so she peed in the