25 Dog Breeds Too Dangerous for Your Home

5. New Guinea Singing Dog

The New Guinea Singing Dog is famous for its unique vocalizations, which sound like yodels and create a chorus when several sing together. These wild dogs from New Guinea are among the rarest in the world, with very few left in the wild. Their singing is unlike any other breed, with harmonic sounds that resemble a mix of whale songs and wolf howls. Scientists believe these dogs have changed little for thousands of years, making them a living link to ancient canines. Their fox-like appearance, flexible spine, and upright ears help them survive in the wild. Though some are kept in captivity for conservation, they are not suited as household pets due to their strong wild instincts.

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