A number of carnivals have appeared over the last couple of weeks:
Linnaeus' Legacy #6 is up at From Archaea to Zeaxanthol, as is Circus of the Spineless.
Carnival of the Blue is up at Zooillogix.
The Boneyard, lucky # 13, is up at Greg Laden's Blog.
Sixty-four years later: How Watson and Crick did it
1 day ago in The Curious Wavefunction