Thomas of Cantimpré [circa 1200-1272 CE] (Liber de natura rerum, Marine monsters 6.9): Caab is a marine animal, as Aristotle says, having small feet in relation to its body, which is of course large. His feet are like the feet of a cow. But it has one long foot, which it uses as hands for everything, and by means of it the caab picks up food and brings it to his mouth, and by means of it uproots what it wills. And that foot was created cartilaginous, lacking bone. When it swims in the water, it breathes in it; but by breathing it draws water into its body with its breath, and when it has been filled with water, it expels the water by jumping back into the air and thus breathes. - [Badke translation/paraphrase]