A very rare kind of New Guinea’s “singing” dogs were found again in the mountains after 50 years until 2016, when researchers found 15 of them. There are only about 200 singing dogs that are under human care and none was seen in their natural home in the mountains for 50 years. This breed is famous for their howls that are almost the same as the sound made by humpback whales. Scientists are hoping that there would be more New Guinea wild singing dogs in the future.