Investigations of immune recognition in nonmammalian species provide new insights into the evolution of immunity ... of life on Earth with single-cell organisms more than 3.5 billion years ago ...

Evolution 62, 436–451 (2008). King, N. The unicellular ancestry of animal development. Developmental Cell 7, 313–325 (2004). Kirk, D. L. A twelve-step program for evolving multicellularity and ...

Take the evolution of sex, for instance. To make the move from asexual to sexual reproduction, nature took a system by which parent cells reproduced simply by dividing (asexual reproduction ...

The simplest viruses are parasites in cells of other organisms ... All this is understandable in the light of evolution theory; but what a senseless operation it would have been, on God's part ...