by Brian Thomas, Ph.D., and David Thomas* The bacteria alive in our guts swim using tiny engines that power propellers called flagella (Figure 1)....

Jeffrey P. Tomkins, Ph.D., and Tim Clarey, Ph.D. Scientists have long wondered how cold-blooded reptiles (ectotherms) like dinosaurs could have...

Evolutionary scientists recently claimed to have discovered bacteria that are 101.5 million years old. In 2010 researchers collected deep-sea sediment...