Endangered Smiling Axolotls Thrive in Mexico City’s Restored Wetlands
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📰 The quick summary: All 18 endangered axolotls released into artificial wetlands in Mexico City have survived and gained weight, demonstrating that well-designed habitats can help restore populations of this iconic amphibian species.
📈 One key stat: 100% of the released axolotls survived in the artificial wetlands, showing that even within a megalopolis of 20 million people, carefully restored habitat can support this critically endangered species.
💬 One key quote: “If we can restore this wetland habitat and restore the axolotl’s population in a city of more than 20 million people, I feel that we have hope for humanity.”

1️⃣ The big picture: Scientists have successfully reintroduced critically endangered axolotls into artificial wetlands in Mexico City. A captive-breeding program released 18 individuals into a mixture of created and restored habitats, with all of them surviving and gaining weight. This remarkable amphibian, known for its perpetual smile and unique biological traits like regenerating body parts, has been endangered since the Spanish conquest drained the lakes around Mexico City over 300 years ago. The project shows that even in one of the world’s largest urban areas, habitat restoration efforts can succeed in saving iconic endangered species.
2️⃣ Why is this good news: The survival of all released axolotls demonstrates that well-designed habitats can support this endangered species even in urban environments. Scientists installed natural water filters in the artificial quarry wetland, proving that relatively simple interventions can create viable habitats. The released animals not only survived but gained weight, confirming they’re successfully hunting and adapting to their new environment. This conservation success offers a blueprint for saving other endangered species in urban settings and shows that humans can reverse ecological damage with targeted restoration efforts.
3️⃣ What’s next: Scientists need to expand these successful habitat restoration efforts to support more axolotl populations. Continued partnerships with local farmers will be essential for creating and maintaining additional wetland habitats. Monitoring the released axolotls will provide valuable data on their long-term survival and breeding success in these restored environments.

Read the full story here: Good News Network – Perpetually-Smiling Endangered Amphibian Now Thrives in Artificial Wetlands in Mexico City