This work combines the two and there are many places in the book which explain the inner workings, i.e.
Intelligent design and evolution through divine intervention in a historical and future perspective.
The book seems to be withstanding the test of time
PAPER 74: Section 8.
The Legend Of Creation
http://www.urantiabook.org/newbook/ppr074_8.htmlPAPER 65: Section 2.
The Evolutionary Panorama
The story of man's ascent from seaweed to the lordship of earthly creation is indeed a romance of biologic struggle and mind survival. Man's primordial ancestors were literally the slime and ooze of the ocean bed in the sluggish and warm-water bays and lagoons of the vast shore lines of the ancient inland seas, those very waters in which the Life Carriers established the three independent life implantations on Urantia.
http://www.urantiabook.org/newbook/ppr065_2.htmlhttp://urantiabook.org/newbook/index.htmlEnjoy!