Chickens worry about the future
Jennifer Viegas
Chickens don't just live in the present, but can anticipate the future and demonstrate self-control, something previously attributed only to humans and other primates, according to a recent study.
The finding, published in the current issue of the journal Animal Behaviour, suggests that domestic fowl (Gallus gallus domesticus) are intelligent creatures that might worry.
"An animal with no awareness of 'later' may not be able to predict the end of an unpleasant experience, such as pain, rendering [the pain] all-encompassing," says lead author Dr Siobhan Abeyesinghe.
"On the other hand, an animal that can anticipate an event might benefit from cues to aid prediction, but may also be capable of expectations rendering it vulnerable to thwarting, frustration and pre-emptive anxiety.
"The types of mental ability the animal possesses therefore dictate how they should best be managed and what we might be able to do to minimise psychological stress."