The Peat-Bladder is a curious, pink, ovoid creature from the foothills of the Equatorial Mountains of the planet Darwin IV.

Whenever there is a fine, rainbow mist hovering about a meter above the surface of the saturated and very spongy soil on the rolling ground, there can be exhalation mists from a bed of peat-bladders, the curious pink ovoid creatures sunk upright in the boggy ground that serves to moisten and protect their sensitive, wrinkled skins. The sounds of their wheezing voices can sound amusing as the animals' flabby, exposed lips punker.