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Orangutans are not naturally bloodthirsty, and their attacks on humans are mostly due to threats to survival or competition for territory. Observations from zoos and research institutions show that proper environmental management and avoidance of stimulation can effectively reduce the risk of attack. Never generalize to all orangutans based on a single incident. Their behavior should be viewed rationally based on scientific research. Only correct understanding can promote the peaceful coexistence between humans and orangutans.

Although technological development brings convenience, it also brings hidden dangers. If nuclear weapons, genetic modification and other technologies are out of control, they may cause the self-destruction of mankind. We must carefully evaluate the ethics and safety of scientific and technological development, actively seek international cooperation, and establish norms to ensure that science and technology benefit mankind rather than backfire on ourselves. Otherwise, the future of human civilization will be cast into shadow.

The temperature of the flame is not determined by the color, but is affected by the burning substance and environmental factors. The combustion of different substances produces spectra of different wavelengths, and then presents different colors. Red flames are cooler, while yellow or blue flames are relatively warmer. Therefore, it is not a scientific and accurate way to determine the heat of a flame based on its color alone. Only by deeply exploring the principles of combustion can we truly understand the characteristics of flames.

The reason why fire has no shadow is not because it does not exist, but because of the relationship between the light source and the object. Fire itself is not an independent luminous body, but the light and heat produced by combustion. These rays are scattered and do not form clear boundaries that can be blocked and cast shadows. Looking at a flame, we see the scattering of its light, which is the key to the lack of shadows. Therefore, the fact that fire has no shadow is due to the properties of light, not a problem.

The red color of flame is not simply a certain color, but is composed of a spectrum produced by the chemical reaction of substances at high temperatures. When different substances burn, they emit light at different wavelengths, thus showing different colors. Red light has a longer wavelength and is more easily excited in high temperature environments, so fires tend to appear red. An in-depth exploration of the color of flames can provide a better understanding of the properties and combustion mechanisms of matter. This also shows that the mystery of science is worthy of our continued exploration.

Cloning humans not only touches the bottom line of ethics, but also carries huge risks. The replication of genetic defects may lead to health problems in the replicating individuals and even the spread of genetic diseases. In addition, the protection of replicators' rights and interests and the adjustment of social structure will face unprecedented challenges. Therefore, prohibiting human cloning is a necessary step to protect human welfare and maintain social order.