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Table 1 Overview of all observations of insert-and-transport tool use

From: A novel tool-use mode in animals: New Caledonian crows insert tools to transport objects

Observation

Date

Subject

Condition

Tool

Object

1

09-03-2013

Liane

Experimental

a

b

2

13-03-2013

Aigaios

Experimental

c

e

3

13-03-2013

Aigaios

Experimental

c

f

4

19-03-2013

Liane

Experimental

d

b

5

26-02-2014

Liane

Non-experimental

c

g

6

26-02-2014

Liane

Non-experimental

h

i

  1. The tool and object lettering refers to Fig. 1
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