As this topic (in this thread) is regarding to Evolution, then it is about biology, such as genes, DNA, and proteins, as well as about the physical traits. Biologists are not deal with human behaviour, hence the evidence are not subjective.
Biology belonged to the Life Sciences in NATURAL SCIENCES.
And all Natural Sciences would include the following sciences:
- Physics
- Chemistry
- Earth Sciences
- Astronomy (which would include fields like astrophysics & physical cosmology)
- Life Sciences
A lot of them, may have some crossover, or one science may entwined with other sciences, such as physics fields like Relativity & Quantum Mechanics may be used in astronomy, like astrophysics and cosmology, or like Nuclear Physics (eg nuclear fusion) can be used to understand the Nucleosynthesis processes in a star’s core.
Natural Sciences and Physical Sciences have to follow the requirements of Falsifiability, Scientific Method & Peer Review, hence the evidence that are acquired, examined & analysed, have to be physical - and either “natural” or “man-made”.
Natural Sciences (and Physical Sciences) don’t gather subjective evidence.
There are sciences that do deal with subjective evidence, such as human behaviour, emotion and the way they think, these are psychology, psychiatry, behavioural sciences, psychiatric treatments, group therapy, anthropology (study of human cultures), etc. All these would fall under Social Sciences.
Social Sciences have more numerous different types of sciences than the 5 sciences I have listed for Natural Sciences, because they include not just about human behaviours, but also about human cultures (geographical or ethnic customs, such as food they eat, music they composed, etc), and other human-related activities, such as archaeology, media studies, linguistics, demographics, laws & ethic, economics, political science, etc.
Social Sciences is all about the ways behave as individuals or within groups, eg communities, societies, etc, and the ways they interact with each other.
But let me bring back to this thread. This thread is about Evolution, not about human behaviours or their opinions, this topic has nothing to do with Social Sciences, so the evidence in Evolutionary Biology are physical and natural, not subjective evidence as used in psychology or psychiatry.
While humans is part of natural world, but you are forgetting that Evolutionary Biology are not just about human biology, but also about every other animals, as well as plants, fungi, and microorganisms like protists, bacteria and archaea. These other non-human organisms don’t have human behaviours, so the topic about human behaviours are not relevant to other living organisms.
And what do all living and extinct organisms have in common? Cells!
The physical & natural cells. The cells are responsible for life, and they all contained the following biological macromolecules:
- Proteins, which are responsible for organism’s structure and enzymes.
- Nucleic Acids, like DNA & RNA
- Carbohydrates, which have many functions including in Nucleic Acids (ribose sugar & deoxyribose sugar).
- Lipids
It is a lot more complex than this, but for any organism to reproduce, it will require both proteins and DNA to work together in the cells, for reproduction to occur, and that would include fertilisation and cell division.
All of that, since I started talking about cells, are physical and natural evidence, not subjective evidence of human behaviour.
So please, try to understand the differences between Natural Sciences & Social Sciences, because I really don’t want to talk about human behaviour, as they have nothing to do with this thread’s topic, and there other living organisms, not just humans, and Evolution are about all organisms, living or extinct.
if you want to talk more about human behaviour and their subjective experiences, then by all means, go start a new thread.
