The animals are bulls, wild horses, reindeer, bison, and mammoths outlined with charcoal and painted mostly in reds, yellow, and browns.
这些动物有公牛、野马、驯鹿、野牛和猛犸象，用木炭画出轮廓，主要用红色、黄色和棕色来上色。
2
This unmasking explains the autumn colours of yellow and orange, but not the brilliant reds and purples of trees such as the maple or sumac.
这一发现解释了秋天的颜色是黄色和橙色，而不是像枫树或漆树那样明亮的红色和紫色。
3
Underlying carotenoids give off a yellow hue, while anthocyanins, produced late in the summer and throughout fall, are responsible for the vibrant reds and purples.