When I was young I was taught that our ancient mammal ancestors were small and likely afraid of dinosaurs. They scavenged and ate eggs but otherwise hid out. But a new fossil shows that to the contrary mammals ate dinosaurs. According to NewScientist the fossil is unique. It shows the cat sized mammal Repenomamus robustusContinue reading “Mammals Ate Dinosaurs: Newly Found Fossil Upends Thinking, Suggests Smaller Mammals Attacked Larger Dinosaurs”