The composition of animals and plants in the severe cold solar terms

The weather has suddenly turned cold these days. Look, the once green Poa pratensis on the lawn has turned yellow, and they are sleeping silently, waiting for the next spring; Those gray trees are all bare and all the leaves have fallen off, which is particularly low-key. They are also waiting for the arrival of spring.

Look, the three women walking the dog in the community are all wearing winter clothes to give their dogs maternal love.

Look, the dog has grown thick hair, which is the instinct of animals. Some dogs wear bright wool vests carefully prepared by their owners, which are particularly energetic.

Natural selection and survival of the fittest are irrefutable iron laws.