The Loh Down On Science | 89.3 KPCC
About This Show
The Loh Down on Science is the fun way to get your daily dose of science in less than two minutes. The program explains the world of science with a dash of humor. Hosted by writer/performer and Caltech alumna Sandra Tsing Loh, it's a program for those who love science as well as for those who avoid it!
Most Recent Episode
Dinosaur Family Tree
3 days ago
; Credit: Scott HartmanThe Loh Down On ScienceThe T Rex is hugging new relatives. Well, old relatives.
This is Sandra Tsing Loh with the Loh Down on Science, saying: Hips DO lie -- if you’re a prehistoric carnivore!
Since the dawn of paleontology, the dinosaur family tree has been based on hip shape. Bird-hipped dinos were plant-eaters and sat on their own branch. Think: the spiny-backed stegosaurus. But lizard-hipped dinos were divided into two groups. Those that dined on veggies like the Brontosaurus and those that munched on meat like the T-rex.
Archeologists considered this family tree tried and true. But research by Matthew Baron from Cambridge University has uncovered something new.
The breakthrough? Assembling the largest ever database of fossil features. A formula produced the most likely arrangement of dinosaur evolution. It turns out that lizard-hipped meat eaters SHOULD be grouped with bird-hipped herbivores.
This shake of the family tree means Rexy is cousins with Tweety. AND it sheds new light on dinosaur evolution, suggesting they emerged fifteen million years EARLIER than previous estimates. Finally, a family reunion to bring distant relatives together! As long as they don’t have each other for dinner. This content is from Southern California Public Radio. View the original story at SCPR.org.