Coal grunters shift benthic objects to access macroinvertebrates in a headwater stream

2018 
Few fishes have been documented shifting objects to access prey. Coal grunters were observed using the mouth, snout or nape to lift, flip or roll benthic objects and expose benthic macroinvertebrates during a series of daytime snorkelling sessions in a clear, sandy upland tributary of the Mitchell River, northern Queensland, Australia.
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