The 6cm long goby is an ‘average swimmer’ but can travel hundreds of kilometres through Australia’s red centre in just a trickle of water

A trickle of water running over parched earth is all the encouragement the desert goby needs. The unassuming little fish, reckoned by researchers to be a poor to average swimmer, only needs a few centimetres of water to follow a rivulet from one isolated, muddy puddle to the next. In the desert rivers region on the southern edge of Lake Eyre in Australia’s red centre, a few centimetres of water may be all it gets.

But their ability to move quickly and opportunistically when floodwaters hit has caught the attention of researchers.

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Source: Guardian Environment