The next stanza continues from stanza one and begins with 'lie still as the sun'. This phrase illustrates the ordinariness and dullness of the animals because of the sharp sounds of each word. Hughes again uses metaphors to appeal to the audience's sense of sight in describing the boa constrictor as fossils, which strengthens the image of the animal as timeworn and ancient as a result of their captivity. Alliteration is immediately followed as can be seen in the phrase 'Stinks of sleepers from the breathing straw'. The reoccurring 's' sound parallels the ordinariness and monotonousness of the animals at the zoo.
The third stanza begins to introduce the jaguar as the poet describes the way the visitors flock towards it cage to see the graceful and deadly animal mesmerised by its stare and by a morbid fascination with death. The continuous flow of the first two stanzas ends from the beginning of the third stanza, which contains the description of the jaguar, this structure of enjambment distances the jaguar away from the other animals and provides focus and adds significance to the jaguar. The punctuation marks in 'stands, stares, mesmerized' serves the purpose of highlighting the jaguar's magnetism because