Origin of the domestic dog or the result of natural introgression as the dog expanded across Eurasia. In 2018, a study found a small amount of dog ancestry in 62% of Eurasian wolf specimens looked at, that hybridization had occurred across a wide number of timescales and not just recently, however in contrast there was almost no admixture detected in the North American specimens. There was introgression of the male dog into the wolf, but also one hybrid detected which was the result of a male wolf crossed with a female dog. Wolves have maintained their phenotype differences from the dog, which indicates low-frequency hybridization.
Dog snapper Dog snapper The dog snapper ("Lutjanus jocu") is a species of snapper native to the Atlantic Ocean. It is a commercially important species, and is popular for display in public aquaria. It is also known as the dogtooth snapper, pargue, or snuggletooth snapper. Its color is typically brown with a bronze tinge, lighter on the sides. In adults, a pale triangle and a light-blue, interrupted line are found just below the eye. This species can reach a length of , though most do not exceed . The greatest known weight for this species is . Dog snapper are found from