Fifty million years ago, horses were certainly not the tall and regal animals they are today. In fact, they were about the size of your average pig, and boasted three or four thick-nailed toes, not hooves to boot! Now, a well-preserved fossil of an ancient pregnant mare is helping paleontologists learn more about what traits of ancient horses still persist in the animals today.
A fossil from Madagascar of a massive, groundhog-like creature is rewriting the evolutionary history of mammals, according to recent research.
By studying ancient Egyptian artifacts and records, experts have been able to trace the increasing instability of the Nile Valley ecosystem as far back as 6,000 years ago, blaming human population growth, human activity, and yes, even climate change, for the extinction of many large mammals.
Experts have recently revealed fossil evidence that indicates that the earliest of mammal ancestors may have started out as nocturnal creatures, meaning daytime hunting and foraging may have been a trait that evolved in later species.
As the oil and gas drilling technique known as fracking, or hydraulic fracturing, grows in this country, scientists are becoming increasingly concerned about the potential health risks some of these toxic fracking fluids pose to mammals, a new study describes.
Scientists have been scratching their heads for years as to the origins monogamy among mammals. Two new studies released Monday revealed different conclusions, and neither of them is romantic in the least.