Reptiles Mysteriously Declining Alongside Amphibians

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The catastrophic declines in frog and salamander populations may be spreading to reptiles. New Scientist reports that scientists reviewed data on ground-dwelling reptiles and amphibians collected over the past 35 years at La Selva Biological Station in Costa Rica, finding a 75-percent decline in both reptiles and amphibians in native forest since 1970. The numbers of both increased in abandoned cacao plantations, by 4% annually for amphibians, and 2.7% per year for reptiles. Fungal diseases or pesticide contamination, blamed for amphibians’ decline elsewhere, are unlikely to be behind the declines at La Selva, since they would affect abandoned plantations as well as native forest. The researchers suggest the cause may be a warmer, wetter climate that stunts tree growth, and reduces the leaf litter, where reptiles and amphibians live. —Julia Whitty

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In this election year unlike any other—against a backdrop of a pandemic, an economic crisis, racial reckoning, and so much daily crazy—Mother Jones' journalism is driven by one simple question: Will America will move closer to, or further from, justice and equity in the years to come?

If you're able to, please join us in this mission with a donation today. Our reporting right now is focused on voting rights and election security, corruption, disinformation, racial and gender equity, and the climate crisis. We can’t do it without the support of readers like you, and we need to give it everything we've got between now and November. Thank you.

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