将以下文字翻译成英文：图表中清晰地显示出犀牛的数量自1960年到2020年有显著的提升从2000s到了12000s斑马的数量基本保持稳定野狗数量略微下降但是触目惊心的是狮子的数量自1960年到2020年急剧下降从20000s衰减到了2000s。首先出现这些现象的原因一部分是环境、气候变化造成的。这60年来非洲环境、气候的变化致使出现了食草类动物更适宜生存、肉食动物不利生存的环境因此犀牛的数量上升斑

The chart clearly shows that the number of rhinos has significantly increased from 1960 to 2020, reaching around 12,000 in the 2000s. The number of zebras has remained relatively stable, while the population of wild dogs has slightly decreased. However, the most alarming trend is the sharp decline in the number of lions, dropping from around 20,000 in the 1960s to 2,000 in the 2000s.

The reasons behind these phenomena are partly attributed to environmental and climate changes. Over the past 60 years, changes in the African environment and climate have resulted in a more favorable habitat for herbivores and a less conducive environment for carnivores. This has led to an increase in the number of rhinos and a stable population of zebras. On the other hand, the lion population has experienced a drastic decline, and the population of wild dogs has also slightly decreased.

Furthermore, the increase in the number of rhinos is evidently a result of human awareness of their endangered status. African countries and international organizations have intensified their efforts to protect rhinos by implementing strict conservation measures, such as increased patrols, hunting bans, and crackdown on illegal trade. These measures have effectively deterred illegal hunting and trading activities, leading to a gradual increase in the rhino population. Additionally, many African countries have established national parks and nature reserves, providing suitable habitats and protective environments for rhinos. However, in comparison, lions, which occupy a higher position in the food chain, are often overlooked. Human activities such as population growth, land development, and agricultural expansion have led to the loss and fragmentation of lion habitats, making it difficult for them to find sufficient food and breeding resources. Furthermore, factors such as illegal hunting, trade, and conflicts have posed serious threats to lion populations, resulting in a continuous decline in their numbers.

In conclusion, while humans have become aware of the need to protect wildlife, the efforts have been somewhat unbalanced. Rhino populations have been protected, but the conservation of wild lions has been neglected. As members of the natural world, it is our responsibility to safeguard our home and provide a suitable habitat for wild animals