“Dogs share 99% of their genes with wolves and can have children with each other. However, both are also so closely related to a whole host of other species that it is possible to for them to produce fertile offspring with jackals, coyotes, the Australian dingo, the African wild dog, Arctic foxes, and the Black fox Coren (2013). The species boundary is obviously not a barrier for reproduction. And of course, all types of dogs are able to cross-breed.” DogSpeciesDogsWolfWolvesInterbreeding Book:The Dog and his Philosopher: A Call for Autonomy and Animal Rights Source: The Dog and his Philosopher: A Call for Autonomy and Animal Rights
“Like most mammals, dogs only have 2 colour detecting cells or cones. This is in contrast to humans, who have 3. Dogs, therefore see a restricted colour spectrum. However, they are not colourblind, instead they see the world in yellow, blue and grey. For dogs, green, yellow and orange are perceived as yellowish, while purple and blue are perceived as blue, and blue-green as grey. As a result, dogs have a hard time recognising a red ball in a green field.” ScienceDogAnimalsDogsColour Perception Book:The Dog and his Philosopher: A Call for Autonomy and Animal Rights Source: The Dog and his Philosopher: A Call for Autonomy and Animal Rights