Photo of a Axolotl underwater
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The Shocking Truth About This Salamander

These creatures are everywhere, from pet stores to video games. But in the wild, they’re disappearing.

By Jess Romeo
From the October/November 2023 Issue

Students will describe key traits of a unique amphibian and explain key factors causing its decline in the wild.

Lexile: 850L; 700L
Other Focus Areas: Human Impacts; Number & Operations
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Note: This article has been updated to correct an error in the map of the print edition.

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Axolotls have been the inspiration for characters like these.

Do you recognize this critter? Its six frilly gills look like a crown of feathers. It has a long, flat tail and seems to be smiling. You may have seen it in games like Minecraft and Pokémon. But this is much more than a cartoon character! It’s a real-life animal called an axolotl (ak-suh-LAH-tuhl).

This incredible creature is a type of salamander. It has many unusual traits. For example, it can regrow lost body parts! For people in Mexico, axolotls are important in history and culture. 

Today about 1 million axolotls live in science labs or as pets in homes around the world. But in the wild, they’re dying out. Once you know the true story of axolotls, you might be inspired to share what you know with others.

Do you recognize this critter? It has six frilly gills. They look like a crown of feathers. It has a long, flat tail. It seems to be smiling. You may have seen it in games like Minecraft and Pokémon. But this is much more than a cartoon character! It’s a real-life animal. It’s called an axolotl (ak-suh-LAH-tuhl).

This incredible creature is a type of salamander. It has many unusual traits. For example, it can regrow lost body parts! For people in Mexico, axolotls are important in history and culture.

Today about 1 million axolotls live in captivity around the world. These axolotls live in science labs or as pets in homes. But in the wild, they’re dying out. Knowing the true story of axolotls might inspire you to share what you know with others.

Wet World

LUIS ANTONIO ROJAS/PANOS PICTURES/REDUX, WITH SUPPORT BY THE NATIONAL GEOGRAPHIC SOCIETY

Axolotls often appear in Mexican art, like this mural in Mexico City.

Axolotls are everywhere in pop culture, but they come from just one place in the wild: a small valley in what is now central Mexico. Hundreds of years ago, wetlands, or waterlogged land, covered the area. 

This soggy landscape was the perfect home for axolotls, a type of amphibian. Like all amphibians, including frogs and toads, axolotls need water to survive. That’s where amphibians lay their eggs. Their babies have gills so they can breathe underwater (see Life Cycle of an Axolotl)

But axolotls differ from other amphibians in one important way. They never grow fully developed lungs and other body parts that would let them live on land. Instead, they keep their youthful features—including their gills—as they age. As predators in this watery habitat, axolotls thrive by eating worms and small fish.

In the early 1500s, however, everything changed.

Axolotls are everywhere in pop culture. But they come from just one place in the wild. They live in a small valley in what is now central Mexico. Hundreds of years ago, wetlands, or water-logged land, covered the area. 

This soggy landscape was the perfect home for axolotls. These animals are a type of amphibian. Other amphibians are frogs and toads. Like all amphibians, axolotls need water to survive. That’s where amphibians lay their eggs. Their babies have gills. That allows them to breathe underwater (see Life Cycle of an Axolotl).

But axolotls differ from other amphibians in one important way. They never grow fully developed lungs and other body parts that would let them live on land. Instead, they keep their youthful features as they age. This includes their gills. Axolotls are predators in this watery habitat. They thrive by eating worms and small fish.

In the early 1500s, however, everything changed.

Under Threat

In the 16th century, Spain invaded the land we now call Mexico. Over time, people drained the lakes and wetlands. Then they built cities on the newly solid ground. The axolotls’ habitat began to disappear (see Valley of Mexico: Then and Now). As cities grew crowded, the few remaining waterways became polluted.

Today wild axolotls are found only in an area of Mexico City called Xochimilco (soh-chee-MEEL-koh). They live in narrow canals, or human-made waterways, that flow through the last of the wetlands. 

Scientists think only 50 to 1,000 axolotls remain in their natural habitat. This makes them one of the rarest wild animals on the planet. 

In the 16th century, Spain invaded the land we now call Mexico. Over time, people drained the lakes and wetlands. Then they built cities on the newly solid ground. The axolotls’ habitat began to disappear (see Valley of Mexico: Then and Now). The cities grew crowded. And the few remaining waterways became polluted.

Today wild axolotls are found only in one area of Mexico City. This area is called Xochimilco (soh-chee-MEEL-koh). Axolotls live in narrow canals. These are human-made waterways. The canals flow through the last of the wetlands. Scientists think only 50 to 1,000 axolotls remain in their natural habitat. This makes them one of the rarest wild animals on the planet.

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The canals in southern Mexico City are all that’s left of wild axolotls’ habitat.

Saving the Salamander 

Many people in Mexico worry about axolotls. “They’re an icon for Mexican people,” says Diana Laura Vázquez Mendoza. She studies axolotls in Mexico. “We see our country’s history through the history of axolotls.”

To protect wild axolotls, scientists and farmers in Mexico City have teamed up. Their project has two goals—help food growers return to ancient farming practices and help wild axolotls thrive in their home habitat.

Many people in Mexico worry about axolotls. “They’re an icon for Mexican people,” says Diana Laura Vázquez Mendoza. She studies axolotls in Mexico. “We see our country’s history through the history of axolotls.”

To protect wild axolotls, scientists and farmers in Mexico City have teamed up. Their project has two goals. They want to help food growers return to ancient farming practices. And they want to help wild axolotls thrive in their home habitat.

NATURE PRODUCTION/NATUREPL.COM

Wild axolotls are green-black or tan in color. Pink axolotls exist only in captivity, places where they are cared for by people.

In the canals where axolotls live, farmers grow flowers and vegetables on special floating gardens. The Indigenous peoples of central Mexico have long farmed this way. 

Researchers created protected areas between the gardens. Barriers made of mesh, plants, and sticks keep out the big fish that hunt axolotls. Plants filter the polluted water. Finally, axolotls have a safe, clean place in the wild to call home. 

In the future, the scientists plan to release captive axolotls in these protected areas. The scientists and farmers hope to create an environment where wild axolotls can grow and thrive once again.

Someday the project may help save the wild population of this strange, smiley creature beloved throughout the world.

In the canals where axolotls live, farmers grow flowers and vegetables on special floating gardens. The Indigenous peoples of central Mexico have long farmed this way.

Researchers created protected areas between the gardens. They used mesh, plants, and sticks to make barriers. These barriers keep out the big fish that hunt axolotls. Plants filter the polluted water. Finally, axolotls have a safe, clean place in the wild to call home.

In the future, the scientists plan to release captive axolotls in these protected areas. The scientists and farmers hope to create the right environment for axolotls. They want it to be a place where wild axolotls can grow and thrive once again.

Someday the project may help save the wild population of this strange, smiley creature beloved throughout the world.

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Activities (4) Download Answer Key
Quizzes (1)
Step-by-Step Lesson Plan

1. PREPARE TO READ (10-15 minutes)
Use visual information to activate prior knowledge and build understanding of core ideas.

  • Play the videoAmazing Amphibians.” Then show the class the magazine cover. Tell students this creature is an axolotl, a unique amphibian that they will read about today. Practice pronouncing its name (ak-suh-LAH-tuhl).
  • Have students preview the article, looking at text features like photographs, captions, maps, and diagrams. Ask: Based on the subtitle (“These creatures are everywhere, from pet stores to video games. But in the wild, they’re disappearing.”) and other text features, what do you think this article will be about? Let students discuss in pairs.

2. READ AND CONNECT (20-25 minutes)
Read the article and summarize key information about axolotls.

  • Tell students that the purpose of reading this article is to understand what’s unique about axolotls and why the animals are disappearing in the wild. Read the article out loud, reviewing vocabulary and key details as needed. Help students identify the major causes that have led to the endangerment of axolotls (e.g., habitat loss) and the ways in which scientists and farmers are trying to help axolotls survive in the wild (e.g., restoring and protecting habitat).
  • Tell students to read the sidebar and diagram independently or with a partner to learn more about axolotls.
  • Conduct a think-pair-share: Have students decide what they found most interesting about axolotls, then share with a partner. To incorporate movement, you can have students get up and find a partner to share their ideas with. Conclude with a brief whole-class discussion.

3. RESPOND TO READING (10 minutes)
Make connections and draw conclusions.

  • Choose an assessment: Either share the graphic organizer Find Those Text Features or the article’s Quick Quiz. Have students complete the assessment independently and then discuss their answers as a class.
  • Ask and discuss: Do you think scientists’ plan to release captive axolotls will help their numbers grow? Why or why not? 

Text-to-Speech