The question of whether an alien race would look similar to us is a topic of speculation and scientific inquiry, as we currently have limited knowledge about extraterrestrial life. While we cannot provide a definitive answer, we can explore some relevant points.
Firstly, it's important to recognize that the diversity of life on Earth itself is vast. Even within our own planet, we find an incredible array of species with diverse forms, sizes, and adaptations. This diversity is a result of evolution, which is influenced by numerous factors, including environmental conditions and natural selection.
When considering life on other planets, we have to account for the wide range of potential conditions that may exist, such as variations in atmospheric composition, gravity, temperature, and other factors that could shape the evolution of life. It's conceivable that alien life, if it exists, may have evolved under completely different conditions and could possess forms and features unlike anything we've encountered on Earth.
However, some scientists argue that there could be certain convergent evolutionary principles at work. Convergence refers to the independent evolution of similar traits in unrelated organisms due to similar selective pressures. For example, on Earth, we see convergent evolution in features like wings in bats, birds, and insects. If similar environmental conditions exist elsewhere, it's conceivable that there could be convergent evolution, leading to the development of certain features or body forms that resemble those found in Earth organisms.
That said, the vast size of the universe and the sheer number of potentially habitable planets suggest that a wide range of possibilities exists. With billions of galaxies, each containing billions of stars, it is statistically likely that a variety of forms of life could have emerged, including ones that may be entirely dissimilar to us.
In summary, it is challenging to determine the likelihood of an alien race resembling us due to the limited knowledge of extraterrestrial life. While convergence could lead to some similarities under similar environmental conditions, the immense size of the universe suggests a vast potential for diverse and distinct forms of life beyond our current understanding.