Wrong Again . . .

Paleontologists from Poland and Sweden discovered dozens of 397-million-year-old fossil footprints in the Holy Cross Mountains of southeastern Poland, as revealed in the January 7 issue of the journal Nature. The prints were made by tetrapods, which are vertebrate animals with four limbs.

Grzegorz Pienkowski, a paleontologist at Warsaw University, told National Geographic that they are the oldest tetrapod tracks and the oldest evidence of true tetrapods.

What's significant about the discovery i...