An article published in the “Journal of Vertebrate Paleontology” reports the identification of an extinct species of carnivorous mammal whose estimated weight is higher than that of polar bears. Dr. Nancy Stevens and Dr. Matthew Borths of the Ohio University named it Simbakubwa kutokaafrika after studying fossils dating back some 22 million years ago discovered in Kenya between 1978 and 1980 but never studied. In its ecosystem it was a top predator and is the oldest representative discovered so far of the group of hyaenodonts.