When dogs recall toys, and horses plan ahead, are animals so different from us? | Martha Gill

We're warned not to assign human qualities to other species, but evidence of their complex abilities is mounting

The details differ, but really it's the same story, turning up every few weeks, for around a decade now. The revelation - and it'salways presented with a dramatic flourish - is this: animalsare much more like us thanwe thought.

Last week, it was that dogs could remember the names of their old toys - even when they hadn't seen them for two years. Language acquisition, that uniquely human" thing, was being encroached on, the researchers said: dogs could store words in their memory. Last month, it was that horses could strategise and plan ahead, overturning the assumption that they simply respond to stimuli in the moment". And in April, it was that there's a realistic possibility of consciousness" in reptiles, fish and even insects - according to a declaration signed by some 40 scientists. One of the studies backing the claims recorded bumblebees playing with wooden balls. The behaviour had no obvious connection to mating or survival, the authors thought. It was for fun.