Instruct: Identify the main category of Biorxiv papers based on the titles
Query: The formal demography of kinship IV: Two-sex models
28
The categories of this paper are: communication
9
The categories of this paper are: synthetic
5
The categories of this paper are: cell
10
The categories of this paper are: and
32
The categories of this paper are: zoology
6
The categories of this paper are: plant
23
The categories of this paper are: immunology
22
The categories of this paper are: physiology
3
The categories of this paper are: evolutionary
17
The categories of this paper are: molecular
21
The categories of this paper are: toxicology
12
The categories of this paper are: behavior
31
The categories of this paper are: paleontology
1
The categories of this paper are: bioinformatics
8
The categories of this paper are: genomics
13
The categories of this paper are: animal