Some scientists believed the T.Rex evolved to its enormous size, then its arms shrank, when they were no longer needed. The new discovery, though, shows that the tiny-armed killing machine may have evolved from a much smaller killing-machine-with-tiny-arms. This totally rearranges the previous T.Rex evolution paradigm.
The 125 million-year-old fossil dinosaur, unearthed in China and dubbed Raptorex kriegsteini, is "as close to the proverbial missing link on a lineage as we might ever get for tyrannosaurs," Sereno said.
(As a special bonus, check out the religious debate in the comments.)
From the Upcoming ueue, submitted by .