Bears lived up to 111,000 and 166,000 years ago. no actual fossil record available. Bears genetic record and fossil record is still being researched.
They all have long fur. they all have completely different adaptation depending on which area they are in, their specific ancestor, and their specific bear type. Polar bears have white fur because they live in a snowy region and their fur helps them blend in. Sri Lankan Sloth Bears and Asian Black Bears don't have white fur because they live in completely different regions, and it wouldn't help them blend in, it would only make them stand out. Sri Lankan Sloth Bears have very long claws or nails, because of their prey and predators, the polar bear and asian black bear don't have this because
