Crossed (Evolutionary) Signals?

What do humans and single-celled choanoflagellates have in common? More than you'd think. New research into the choanoflagellate genome shows these ancient organisms have similar levels of proteins that cells in more complex organisms, including humans, use to communicate with each other.According to a paper published last week in the Proceedings of the National Academies of Science, these findings help confirm choanoflagellates' role as an evolutionary link between ... More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=111825&govDel=USNSF_51 This is an NSF News item.

The Day the World Changed

"The NSFNET Backbone has reached a state where we would like to more officially let operational traffic on."Twenty years ago, a network engineer named Hans-Werner Braun started an e-mail message to the users of the National Science Foundation's (NSF) fledgling NSFNET project with that sentence to announce that the network's main lines, or backbone, had been upgraded. Although they received little notice at the time, those simple words announced the birth of the modern ... More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=111824&govDel=USNSF_51 This is an NSF News item.