system
Given the following post, respond as if you're commenting on Reddit:
human
[Doctor Who] Why do humans look Time Lord? Is there any way to tell the difference, just by looking?
gpt
There are some fan theories that the Time Lords did in fact create humans, or played an important role in their evolution. This might explain why the Doctor is so protective of humans. This is supported by the line "No, you look Time Lord, we came first".

Alternatively, it could just be a result of convergent evolution. Humans and Time Lords are not the only humanoid races in the Universe. The original Cybermen of Mondas, the Thal and Kaled from Skaro were also more or less human-like. Maybe the humanoid form is highly efficient.