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📰 The quick summary: Scientists have discovered that nearly 40% of land-dwelling vertebrate species were found and named in just the last century, revealing surprising new biodiversity hotspots in places like the Andes, Indonesia, and northern Australia that now need urgent protection.
📈 One key stat: Known reptile species in Australia more than doubled over the past century, rising from 376 in 1920 to 933 in 2020, showing how rapidly our understanding of global biodiversity is expanding.
💬 One key quote: “We cannot save species we don’t even know about, so we must invest in field surveys and taxonomy projects that lead to new species discoveries.”

1️⃣ The big picture: Biodiversity hotspots are regions of the planet that support an exceptionally high number of species, from the tropical Andes to the coastal forests of eastern Australia. A new study tracking species discoveries across 100 years has found that nearly 40% of all known land-dwelling vertebrates were identified within that period alone. These discoveries are actively reshaping scientists’ understanding of where the richest pockets of life on Earth actually are. Emerging hotspots have been identified in Indonesia, the central Andes, Madagascar, and northern Australia, some of which were previously overlooked. At the same time, up to 80% of the world’s plants and animals are still unknown to science, meaning the full picture of global biodiversity remains far from complete.

2️⃣ Why is this good news: Each new species discovery adds to a growing and increasingly detailed map of life on Earth, giving conservationists better tools to prioritize where protection efforts are most needed. Identifying unexpected hotspots in places like the montane forests of the Andes and the savannas of northern Australia opens up new opportunities to safeguard ecosystems before they are lost. The rapid doubling of known reptile species in Australia alone shows that dedicated scientific fieldwork produces real, meaningful results. Expanding our knowledge of biodiversity also strengthens the case for funding taxonomy and ecological research, which directly supports smarter conservation policy. Every species formally named and documented becomes a species that can legally and scientifically be protected.

3️⃣ What’s next: Researchers are calling for major investment in field surveys and taxonomy projects to accelerate species discovery before unknown life is lost to habitat destruction or climate change. Newly identified hotspots in the Andes and southeast Asia face urgent threats from deforestation and rising temperatures, making conservation action in these areas a priority. Scientists also warn that without action, many species risk what they call a “dark extinction,” disappearing before science ever gets the chance to document them.

Read the full story here: The Conversation – From Australia to the Andes, we’re discovering new biodiversity hotspots worldwide