Brakefield says the two-spot ladybugs are now so extraordinarily difficult to find that he can't continue the study.
Brakefield说现在双斑瓢虫如此稀有以至于他无法继续他的研究。
2
Thirty years ago, if you were walking along the coast of the Netherlands and picked a two-spot ladybug off the leaf of a European lime tree, chances were that the bug would be red with black spots.
30年前，如果你走在荷兰的海岸边，从菩提树上取下一只双斑瓢虫，你会发现这只瓢虫的颜色是红色黑斑的；
3
Can you spot the difference between these two pictures?