This suggests that luminescence evolved along and facilitated the Squaliform deep-sea radiation – a scenario that would be consistent with the elevated diversification rate detected for Etmopteridae, Somniosidae, and Oxynotidae.
Molecular phylogeny has indicated Antarctic shallow water as the origin of both deep-sea asellote isopods (>250 Ma Raupachh et al., 2009) and deep-sea octopus (˜33 Ma; Strugnell et al., 2008) during periods with low-temperature deep-water formation at high latitudes (Horne, 1999), prior to deep-sea radiation.
Related to our cover story on how science goes wrong.A chimp's day in court (Wired True facts about Fukushima and ocean radiation (Deep Sea News).
Although officials say they have no evidence of a planned attack by terrorist groups, they have constructed a web of protective measures that includes Awacs surveillance planes, NATO sea patrols, radiation detectors and thousands of soldiers and police officers.
On December 16th, a scientist from America's National Snow and Ice Data Centre said the shrinking of Arctic ice (and exposure of extra sea to radiation) was warming the world at an accelerating pace.
But the still-evolving story of the towns like Namie is a painful reminder that the three-pronged onslaught of earth, sea and radiation that hammered the country a year ago was no ordinary disaster.
In 1961, the K-19 was in the Norwegian Sea when its radiation detection equipment came to life.
The space directly above the water leaking into the sea had a radiation reading of more than 1,000 millisieverts per hour, Mr. Nishiyama said, a level that could be dangerous to humans.
The maximum EMI SE of 67.9 dB is obtained for composite of 5 wt.% Fe3O4 (0.7 mm thick) with the dominant shielding by absorption (SEA) of electromagnetic radiation.
If sales of children's thongs are to be banned in the United Kingdom to protect against early sexualization, we also need to protect their developing brains and bodies from exposure to a sea of radiofrequency radiation whose full impact cannot be gauged at this time.
During the transition from land to sea and the radiation and diversification into various aquatic environments, cetaceans must have been confronted with formidable challenges from ever-changing environmental pathogens.
