This 25 Million Year Old Platypus Had Teeth Built to Crack Open Armored Prey
Artistic reconstruction of Obdurodon in its natural environment. Credit: Gen Conway/Flinders University Paleontology Lab The platypus is already…
250-million-year-old fossil proves that mammal ancestors laid eggs
The little skeleton was curled so tightly it looked as if it had never really entered the world.…