Mule cognition: a case of hybrid vigour?

@article{Proops2008MuleCA,
  title={Mule cognition: a case of hybrid vigour?},
  author={Leanne Proops and Faith Adelaide Burden and B. Osthaus},
  journal={Animal Cognition},
  year={2008},
  volume={12},
  pages={75-84}
}
This study compares the behaviour of the mule (Equus asinus × Equus caballus) with that of its parent species to assess the effects of hybridization on cognition. Six mules, six ponies (E. caballus) and six donkeys (E. asinus) were given a two choice visual discrimination learning task. Each session consisted of 12 trials and pass level was reached when subjects chose the correct stimulus for at least 9 out of the 12 trials in three consecutive sessions. A record was made of how many pairs each… 
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References

SHOWING 1-10 OF 49 REFERENCES
Equine learning: progress and suggestions for future research
The effect of stimulus height on visual discrimination in horses.
TLDR
Training horses to carry out tasks of visual discrimination could be enhanced by placing the stimuli on the ground, suggesting that the visual appearance of ground surfaces is an important factor in both horse management and training.
Comprehension of human pointing gestures in horses (Equus caballus)
TLDR
It is revealed that horses could rely spontaneously on those cues that could have a stimulus or local enhancement effect, but the possible comprehension of the distal momentary pointing remained unclear.
Scrounger numbers and the inhibition of social learning in pigeons
Equine learning behaviour
Horse sense: social status of horses (Equus caballus) affects their likelihood of copying other horses’ behavior
TLDR
It is shown that domestic horses, Equus caballus, are similarly capable of social cognition and appears to be affected by the demonstrator’s behavior and social status relative to the observer.
Discrimination learning and concept formation in the Arabian horse.
TLDR
The results demonstrate complex pattern discrimination ability in horses, and suggest that they may also have the ability to form and use concepts in problem solving.
...
1
2
3
4
5
...