英国建立名为“冷冻方舟”的濒危动物基因库，分别设立在英国自然历史博物馆和伦敦动物园内，由诺丁汉大学负责提供技术支持。该基因库将储藏从世界各地收集的成千种濒危动物的DNA，以便将来科学家可以利用这些动物基因，重新培育出已灭绝的珍稀动物。这种做法是在对（     ）进行保护

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    Gift-giving is different from culture to culture and person to person.

    When people give gifts, sometimes color is important. For example, for many Chinese people around the world, red is a lucky color, and people often like to wrap gifts in red. However, do you know that in South Korea, red is a color of death? That is why you should not wrap your gifts in this color if you are giving a gift to a person there.

    What about Western countries? In Western countries, the color of wrapping paper is not really important. But color does matter when giving flowers, especially roses. You should not give red roses to a Western person you don't know very well because they are a symbol of love. You could give yellow roses instead, as these are a symbol of friendship. You could also send pink roses as gifts to say thank you.

    What other things should you remember when giving gifts to someone from a different culture? Well, one thing you should keep in mind is the person's religion (宗教). When choosing a gift for a Muslim (穆斯林的) or Jewish (犹太教的) friend, you should never get food including pork, or things made from pigskin. Another thing that you should not get for a Muslim person is alcohol (酒).