What is black and white?

The head and body are black and white, but black is not pure black, and white is not pure white, but brown in black and yellow in white. Distributed in China, Gansu, Shaanxi and Sichuan. Including Qinling, Minshan, Qionglai, Daxiangling, Xiaoxiangling and Liangshan.

2. Penguins in hats

The hooded penguin has a black stripe under its head, which makes it look like wearing a helmet, so it is also called cheek penguin or hooded penguin.

It looks very similar to the Adelie penguin. Its eyes are white, its head is blue-green, its mouth is black, its mouth has slender feathers, its legs are short and its claws are black. Feathers are made up of black and white. The head, back, tail, dorsal wing and mandible of hooded penguins are black, and the rest are white.

3, black and white film

Black-and-white film refers to silver halide photosensitive material composed of silver with different black-and-white brightness. Black and white film is mainly composed of protective film layer, silver halide emulsion layer and transparent film base support.

When the brightness of a black-and-white image is opposite to the brightness of the subject, a black-and-white negative is called a black-and-white negative. Black and white negatives are generally used for high-sensitivity photography.

4. Black cats and white cats

The so-called cows and cats are generally black and white flowers. It looks like a cow, so it is called a cow. Cattle and cats are ordinary domestic cats? (China rural native cat species), all belong to mixed blood. Many kinds of cats may produce black and white flowers because of their coat color, so many cows and cats now have some noble blood.

5. Cows

The coat color is obviously black and white, tall, well-proportioned, with delicate head, thin skin, less fat and short capillaries. Originally from the Netherlands, also known as Dutch cattle. Its coat is black and white.

This kind of cattle has strong adaptability and is introduced and raised all over the world. After long-term domestication and systematic breeding or hybridization with local cows, black-and-white cows with their own characteristics have been bred, which are more suitable for local environmental conditions.

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