A well-known geneticist, Bryan Sykes has been studying DNA from the Siberian Yeti (Abominable Snowman) and Sasquatch in North America.
In a preliminary report, he says the Yeti samples he has matched an ancient polar bear, from when polar bears and brown bears were diverging. So the Yeti might be a previously unknown subspecies of bear, or a polar bear/brown bear hybrid. Bears sometimes walk on their hind legs (perhaps to intimidate?) so maybe the Yeti is a bear with a particular propensity to walk on its hind legs. The Yeti/Sasquatch is reported to be up to 10 feet tall, and polar bears can stand up to 10 feet tall. However the height of Yeti/Sasquatch sightings is likely exaggerated because people are scared.
This is much less spectacular than a new hominid - but pretty amazing anyway.
Dr. Sykes hasn't released results from his American Sasquatch samples yet - but it's conceivable that we have a previously unknown kind of bear wandering around with some unusual behavior.