18+ hour, 27+ min ago  (235+ words) Uncovering the Origins of Tyrannosaurus Rex: A Giant Leg Bone Holds Clues'Chennaionline The discovery of a massive fossil leg bone has sparked debate among scientists about the origins of the iconic Tyrannosaurus rex The fossil, found in rocks dating back…...

18+ hour, 26+ min ago  (212+ words) The concept of sharks as a natural biological group has been challenged by recent findings in genomic studies. The study, published last month on the bioRxiv preprint server, suggests that sharks might not be a single evolutionary lineage after all....