A border collie in the US has learned the names of more than 1,000
items, according to the scientists working with her.
Chaser has been
intensively trained over three years by psychologists Alliston Reid and John
Pilley of Wofford College in South Carolina, who wrote up their findings in the
journal Behavioural Processes.
As well as
seeming to know the names of all of her 1,022 toys, her trainers say she can
categorise them by function or shape, something human children learn to do when
they are about 3yrs old.
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