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Table 1 Individual forelimb preferences in grey short-tailed opossum

From: Forelimb preferences in quadrupedal marsupials and their implications for laterality evolution in mammals

Subject

Sex

Age

Feeding on

Supporting of tripedal stance

Nest-material collecting

   

Non-living food

Live insects

      
   

HI

z

Pref

HI

z

Pref

HI

z

Pref

HI

z

Pref

1

M

34

0.20

1.19

A

−0.03

0.00

A

−0.15

−0.18

A

−0.71

−3.94

R

2

M

21

−0.56

−3.72

R

−0.68

−3.72

R

−0.65

−3.95

R

−0.65

−3.72

R

3

M

2

0.02

0.00

A

0.48

−2.55

R

0.20

1.11

A

0.24

1.20

A

4

M

14

0.38

2.41

L

0.48

2.55

L

0.35

2.07

L

0.65

3.72

L

5

M

17

−0.51

−3.35

R

−0.35

−1.81

A

−0.45

−2.73

R

−0.53

−2.98

R

6

M

6

−0.33

−2.10

R

0.48

−2.55

R

−0.55

−3.39

R

−0.29

−1.55

A

7

M

5

−0.29

−1.80

A

−0.55

−2.93

R

−0.60

−3.72

R

−0.35

−1.90

A

8

M

4

−0.29

−1.80

A

−0.10

−0.36

A

−0.30

−1.75

A

0.12

0.51

A

9

M

6

−0.38

−2.41

R

−0.61

−3.32

R

−0.45

−2.73

R

−0.41

−2.25

R

10

M

2

−0.33

−2.10

R

−0.42

−2.18

R

−0.40

−2.40

R

0.24

1.20

A

11

M

3

−0.07

−0.30

A

0.03

0.00

A

−0.40

−2.40

R

−0.12

−0.51

A

12

M

3

−0.42

−2.72

R

−0.68

−3.72

R

−0.50

−3.06

R

−0.76

−4.29

R

13

F

6

0.16

0.89

A

−0.29

−1.44

A

−0.55

−3.39

R

0.00

0.00

A

14

F

21

0.29

1.80

A

0.23

1.08

A

0.10

0.47

A

−0.12

−0.51

A

15

F

21

0.11

0.60

A

0.10

0.36

A

0.40

2.40

L

0.59

3.16

L

16

F

17

−0.38

−2.41

R

0.61

3.32

L

0.70

4.27

L

0.29

1.55

A

17

F

14

−0.47

−3.02

R

−0.55

−2.93

R

0.05

0.16

A

−0.24

−1.20

A

18

F

14

0.33

2.10

L

0.61

3.32

L

0.35

2.07

L

0.47

2.61

L

19

F

7

0.24

1.49

A

0.35

1.81

A

0.25

1.43

A

0.06

0.17

A

20

F

7

0.33

2.10

L

0.42

2.18

L

0.50

3.06

L

0.41

2.25

L

21

F

7

0.24

1.49

A

0.48

2.55

L

0.20

1.11

A

−0.47

−2.61

R

22

F

39

0.60

3.88

L

0.74

3.95

L

0.60

3.72

L

0.47

2.61

L

23

F

5

0.38

2.41

L

0.35

1.81

A

0.35

2.07

L

0.35

1.90

A

24

F

5

0.51

3.35

L

0.42

2.18

L

0.45

2.73

L

0.82

4.63

L

25

F

2

0.42

2.72

L

0.42

2.18

L

0.30

1.75

A

0.59

3.16

L

26

F

2

0.51

3.35

L

0.55

2.93

L

0.60

3.72

L

0.71

3.94

L

  1. (HI: handedness index; z: z score, positive values indicate leftward bias, negative values indicate rightward bias; Pref: forelimb preference, L: left forelimb; R: right forelimb; A: ambipreferent. Age is given in months).