Which is more trustworthy: carbon-14 dating or reliable eyewitnesses? Conventional dating methods aren’t as straightforward as they seem. In this episode, Dr. Jim Johnson investigates Viking bones, radiocarbon dating, and how we should determine the timeline of historical events.
Natural stone arches are commonly made of sandstone or limestone and are found in coastal cliff areas that can be eroded by wave action. Other arches...
The evolution of mammals from non-mammals, like the evolution of all other animal groups, has been, and will always be, problematic. English paleontologist...
We are all familiar with vocalizations in the animal world. For example, dogs bark, birds sing, frogs croak, and whales send forth their own distinct...
Tandem repeats (TRs) are short sequences of DNA repeated over and over again like the DNA letter sequence TACTACTAC, which is a repetition of TAC three...
