The Taiwan Dog (Chinese: 台灣犬) is a breed of small or medium dog indigenous to Taiwan. These dogs are also known as the Formosan Mountain Dog, Taiwanese Canis, Taiwanese Native Dog (台灣土狗) or Takasago Dog (高砂犬). They are well-adapted to the uneven and thickly forested terrain of Taiwan, having become a semi-wild breed prior to the arrival of several colonial reigns and foreign powers. A close-up of a Taiwanese Dog face showing the upright ears, almond eyes, triangular face, black nose, and the black coating on the tongue. During the settlement, the Dutch hunting dogs started to crossbreed with the Formosan Mountain Dogs; this was the first time that foreign breeds had influenced the Formosan Mountain Dog. Furthermore, the Dutch prohibited native tribes from owning dogs, slaughtering large numbers of the indigenous dogs.