Showing posts with label Venus. Show all posts
Showing posts with label Venus. Show all posts

13 May 2013

Conjuring with rainbow names and handfuls of sea-spray

Mnemiopsis leidyi

Chapter 22: Venus's Girdle

page 316: [Cteonophore] lineage is uncertain. A major for reason for this is that their DNA appears to be evolving extremely fast.

page 316 (marginal note): bioluminescent glow. A readable introduction to remarkable  bioluminescent creatures in the ocean here.  Another good resource here.

page 319: animal pleasure is not something from which the primatologist Sue Savage-Rumbaugh has shied away. In the case of bonobos “the novelty and innovation never seems to end”:
“Observations...indicate that there [is] no tendency toward ‘normalization’ of position or time of copulation.” Savage-Rumbaugh also chronicles the various sounds that the bonobos make while having sex. Chimps make one sound. The bonobos have a variety of cries (naturally), including one known as the “long modulated squeal.” With as much sobriety as Savage-Rumbaugh can muster, she writes, “It changes pitch and phonetic aspect at least once, sometimes twice, and is rather poorly represented as ‘we ee e.’ ”

This is the twenty-third in a new series of notes and comments on chapters in The Book of Barely Imagined Beings. It appears around the time of the US publication, and adds to an earlier series that appeared around UK publication.

8 March 2013

Cloud beings

Ideas of cloud-borne Venusians are not new. As far back as 1967, when there was evidence for substantial amounts of water vapor in the planet's clouds, Carl Saga and Yale biophysicist Harold Morowitz hypothesized organisms the size of Ping-Pong balls, with skins a single molecule thick. Such organisms, so the thinking went, might have originated on the surface some time in the distant past when conditions were more temperate an, as the surface heated up, migrated to the skies. Like jellyfish in terrestrial oceans, they would maintain their buoyancy with float bladders -- filled,  in the Venusian case, with hydrogen. The idea was criticized because although Morowitz and Sagan had suggested ways the cloud-borne might be cloud (sexual land asexual reproduction), they had not shown how they might have evolve, and no one could imagine an evolutionary path by which a Venusian surface dwelling organism might develop a float bladder. Sagan, though, was undeterred. He didn't abandon the cloud-borne life; he just suggested another place to look for it...
-- from Weird Life by David Toomey

See also Libertine Bubbles