'Things started to look dire': Our deep-dive into past climates sounds a warning for this unique corner of AustraliaThe populations of pygmy perches were very genetically distinct from each other. Pictured: a western pygmy perch. Credit: WA Department of Water and Environmental Regulation
First, the surrounding arid land isolates it from the rest of Australia, which allowed a unique suite of species to assemble. Second, its landscape and species are ancient—many tracing back to Gondwanan origins. This suggests biodiversity has accumulated for hundreds of millions of years.
Wooditjup Bilya/Margaret River in southwest WA boasts a unique assemblage of aquatic fauna, including western pygmy perch. Credit: Stephen Beatty
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