A team eager to stretch out the evolution of Cambrian animals into the early Precambrian gives up and says it’s not possible.
Dr. Davidson’s passing seems like an appropriate time to review the work of the great dGRN expert.
For biologists hoping to find an evolutionary solution to the Cambrian explosion, Doug Erwin and Graham Budd offer little comfort.
Many of us remember Pravda and Izvestia, the official propaganda organs of the former USSR.
I showed our new short documentary, The Information Enigma, to my kids last night.