Horses can plan and strategise, new study shows

A new study has suggested horses are more intelligent than previously thought, having been observed to quickly adapt to a treat-based game with changing rules.

Researchers from Nottingham Trent University (NTU) said they were surprised by how the horses quickly grasped the game, busting previous theories that equine brains respond only to immediate stimuli and are not complex enough to strategise.

In the second stage, a "stop light" was introduced, and the rule was changed so that the reward was only given if they touched the card while the light was off.

This did not alter the behaviour of the horses, as they were observed touching the card regardless of the status of the light. That is, until the rules changed for a third time.

In the final stage, researchers introduced a penalty of a 10-second timeout for touching the card while the stop light was on.

The team observed a rapid adjustment to the horses' behaviour now there was a cost to getting it wrong, all of them quickly learning to play by the rules to avoid the timeout, researchers said.

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