Table 1 Subjects, experimental groups and training performances.

From: Giant pandas can discriminate the emotions of human facial pictures

Name

Studbook no.

Sex

Age (years)

Pre-training: no. sessionsa

First stage set

Rewarded expression

First stage: no. sessionsa

A Bao

801

Female

5

27

Upper

Happy

10

Qi Fu

709

Female

7

10

Lower

Happy

30

Xing Rong

680

Female

8

5

Lower

Happy

NA

Qi Zhen

490

Female

16

15

Lower

Happy

24

Shu Qing

480

Female

16

NA

Upper

Happy

NA

Yong Bing

738

Male

7

15

Lower

Happy

20

Xi Lan

731

Male

7

30

Lower

Happy

NA

Mei Lan

649

Male

9

10

Upper

Happy

NA

Bing Dian

520

Male

15

28

Upper

Happy

33

Mei Bing

737

Female

7

16

Upper

Angry

15

Bei Chuan

785

Female

7

6

Upper

Angry

8

Da Jiao

845

Female

7

30

Upper

Angry

NA

Xing Ya

881

Female

8

13

Lower

Angry

35

Wu Yi

830

Male

7

5

Upper

Angry

NA

Xing Bing

814

Male

10

12

Upper

Angry

NA

Qiao

824

Male

11

NA

Lower

Angry

NA

Xiong Bing

540

Male

14

24

Lower

Angry

31

Qiu Bing

574

Male

12

10

Lower

Angry

30

  1. N/A: not applicable. aBold type indicates that the learning criterion was reached.