Officially spooked

To investigate this puzzle, biologists led by Joseph Thornton of the University of Oregon reconstructed an ancestral receptor. They first analyzed receptors for steroid hormones in 59 species, including primitive jawless fish and skates. Then, in a process called gene resurrection, they worked backward to infer what the gene for the ancestral receptor was, and actually made the receptor in the lab: a molecule that last existed on earth 450 million years ago.

I am officially spooked and this sort of scientific shenigans makes me want to go join the IDs...nyah...thats just crazy talk.