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Ancient rock wallabies traveled over 60 km across tough terrain, new fossil evidence shows, challenging past assumptions and underscoring threats from human development.
Fossil evidence from Queensland’s Mount Etna Caves reveals that ancient rock wallabies occasionally traveled over 60 kilometers, crossing challenging terrain including crocodile-infested rivers, contradicting the belief that they are strictly sedentary.
Strontium isotope analysis of fossilized teeth shows some individuals moved far beyond their birth sites, suggesting past long-distance dispersal helped maintain genetic connections.
While modern rock wallabies typically stay within less than 0.2 square kilometers, rare male dispersal up to 8 kilometers may still support genetic exchange.
Researchers warn that human development now threatens these vital movement patterns, highlighting the need for conservation strategies that preserve landscape connectivity to protect the species’ long-term survival.
Los antiguos wallabies de roca viajaron más de 60 km a través de un terreno difícil, según muestran nuevas evidencias fósiles, desafiando suposiciones pasadas y subrayando las amenazas del desarrollo humano.