Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mapping the stereotyped behaviour of freely-moving fruit flies   Most animals possess the ability to actuate a vast diversity of movements,
ostensibly constrained only by morphology and physics. In practice, however, a
frequent assumption in behavioral science is that most of an animal's
activities can be described in terms of a small set of stereotyped motifs. Here
we introduce a method for mapping the behavioral space of organisms, relying
only upon the underlying structure of postural movement data to organize and
classify behaviors. We find that six different drosophilid species each perform
a mix of non-stereotyped actions and over one hundred hierarchically-organized,
stereotyped behaviors. Moreover, we use this approach to compare these species'
behavioral spaces, systematically identifying subtle behavioral differences
between closely-related species.

9
The categories of this paper are: nlin
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex