Surface area of the lung as a function of body mass during postnatal development.

<p>The air-tissue interface during postnatal lung development of the fat-tailed dunnart and tammar wallaby is less than that predicted from the allometric equation. This is in line with other marsupials, and most likely due to the fact that alveolarisation and the subsequent increase in surface area by septation does not commence until after P70 in the tammar wallaby and P45 in the fat-tailed dunnart. Symbols, lines and references as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0053805#pone-0053805-g004" target="_blank">Figure 4</a>.