Hal Clement has 3 audiobooks on Listento.it, narrated by 3 narrators. The most-rated is Iceworld.
Still River
Summary
The riddle of enigma... Years of exacting study were coming to an end. All five student scientists, each the best its species had to offer, were one step away from their final degrees. One examination remained: The students were to determine why the tiny planet of Enigma, a planet with so little mass that it should never have had an atmosphere, in fact it did. Everything seemed to be running smoothly until the only human member of the team, Molly was accidentally blown into one of the deep fissures that pocked the planet's surface. She found herself trapped in a series of tunnels and caves that only led her deeper into the riddle that was at the heart of Enigma. But as her concerned companions followed her, they found Enigma's most puzzling anomaly. For in the dark passages they discovered life - life which couldn't possibly exist.
©1987 Hal Clement (P)2012 Audible, Inc.
Exchange Rate
Summary
Although known as one of the most scrupulously accurate of the "hard science" writers, someone careful to always get the scientific details right, Hal Clement also has a rich and lively imagination, especially when it comes to alien lifeforms, and he has created some of the most memorable alien characters in science fiction. Clement's outdone even himself in the suspenseful novella, Exchange Rate, in which harried human explorers (under pressure in more ways than one!) must try to figure out the lifeways and motivations of some extremely strange and enigmatic alien creatures on one of the strangest planets ever portrayed in science fiction - and do it all before the clock runs out. Exchange Rate was chosen for inclusion in the Seventeenth Annual Collection of The Year's Best Science Fiction.
©1999 by DNA Publications, Inc. First published in Absolute Magnitude, Winter 1999. (P)2000 by Random House, Inc.
Iceworld
Summary
As the planet gleamed in his viewport, Sallman Ken could not believe that such a bleak and icy globe could have produced intelligent life. Yet when the expedition had sent in unmanned landers, that was what it had found. Some sort of native alien, surviving on the barren planet. But Sallman and his team were not the first to make contact. Smugglers from his own planet had begun trading with the natives for a new and virulent narcotic - the most dangerous drug in the universe. Now Sallman would have to find out how he could survive on a planet so cold that sulphur was solid and water was liquid - and how to stop the source of the deadly drug!
©1953 Harry Stubbs (P)2013 Audible, Inc.