Utah State University Eastern provides life-changing experiences for students in all stages of life. Let USU Eastern transform your life for good.
Maintained by pioweb@ucsc.edu. The common ancestor of placental mammals probably looked like Eomaia scansoria, the earliest known placental mammal, shown here in an artist's reconstruction based on a 125-million-year-old fossil skeleton found in China in 2002.aintained by pioweb@ucsc.edu. The common ancestor of placental mammals probably looked like Eomaia scansoria, the earliest known placental mammal, shown here in an artist's reconstruction based on a 125-million-year-old fossil skeleton found in China in 2002.
Spears show early human species was sharper than we thought. 1  Evidence of hunting with spears 500,000 years ago suggests common ancestor of humans and Neanderthals was 'very bright'. 2  Evidence of hunting with spears 500,000 years ago suggests common ancestor of humans and Neanderthals was 'very bright'. Cutting edge technology: early humans were lashing stone tips to wooden handles to make spears about 200,000 years earlier than we thought, research suggests. Photograph: Jayne Wilkins The ancestors of humans were hunting with stone-tipped spears 500,000 years ago, according to a new study â around 200,000 years earlier than previously thought. This means that the technology must have been developed by an earlier species of human, the last common ancestor of both modern humans and Neanderthals.