Some Caminalcules went extinct without leaving descendents. In the real world, what factors might increase or decrease the probability of a species going extinct?

Lack of diversity = higher chance of extinction

high levels of diversity = higher chance of survival

Explanation:

The probable reasons behind the extinction of some Caminalcules are:

The ratio of males and females were not equal so that there were natural fight between male Caminalcules to get a female. This was one of the cause for lowering the population leading to extinction.

The excessive short-life of these Caminalcules was one of the main reason for their extinction as it is more difficult to real organisms because there would be an inherent bias against observing these species in fossil aseemblegs.

5. The two vestigial structures of Caminalcules were ear muscles and tail bones.