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2Axolotl🦎

Photo: Scazon · CC BY 2.0

SpeciesCaudataAmbystomatidae
Amphibians

🦎Axolotl

Ambystoma mexicanum (Shaw & Nodder, 1798)

墨西哥鈍口螈（學名：Ambystoma mexicanum），又名「美西螈」，俗稱「六角恐龍」，是水棲型的兩棲類，是墨西哥的特有種，因其獨特的外貌及幼態延續而著名。也就是說，即使在性成熟後也不會經歷適應陸地的變態，仍保持牠的水棲幼體型態。墨西哥鈍口螈的「不老容顏」使得牠成為許多科學家研究的對象。雖然在全球有作為寵物而被飼養（特別是北美等地），但其原棲地已被大量開發，可生活面積不多於9平方公里。目前原生種在IUCN紅色名錄內被評為極危物種。

Text: Wikipedia, CC BY-SA 4.0.

Videos
52
Photos
6
Measurements
3
Conservation status
CRCritically endangered

IUCN Red List assessment, 2020.

Population trendDecreasing
Key measurements
Body mass
not recorded
Body length
0.3 m
Shoulder height
not recorded
Top speed
not recorded
Bite force
not recorded
Maximum lifespan
17 years
All measurements ↓
Facts and figures

Everything we know about the Axolotl

Typical adult figures. Where a value is an estimate rather than a measurement, it says so.

Body length
0.3 m
AmphiBIO
Details ↓

Source: AmphiBIO · v1 (Oliveira et al. 2017) · CC BY 4.0

Maximum lifespan
17 yearsrecord 17 years · AmphiBIO
AnAge
Details ↓

data quality: acceptable

Record: largest individual on record

Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0

Gestation
18 days
AnAge
Details ↓

data quality: acceptable

Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0

Not recorded for Axolotl yet: body mass, shoulder height, top speed, bite force.

Where it sits

Family tree

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›classAmphibia
  4. ›orderCaudata
  5. ›familyAmbystomatidae
  6. ›genusAmbystoma
  7. ›speciesAmbystoma mexicanum
Full lineage
  1. classAmphibians · Amphibia
  2. orderSalamanders & newts · Caudata
  3. familyAmbystomatidae
  4. genusAmbystoma
All 13 branches ↓
  1. kingdomMetazoa
  2. phylumChordata
  3. subphylumCraniata
  4. subphylumVertebrata
  5. superclassGnathostomata
  6. superclassSarcopterygii
  7. superclassTetrapoda
  8. classAmphibians · Amphibia
  9. superorderBatrachia
  10. orderSalamanders & newts · Caudata
  11. superfamilySalamandroidea
  12. familyAmbystomatidae
  13. genusAmbystoma
More

More about the Axolotl

Closest relative on this site
🦎 Alpine newt — last shared an ancestor ≈ 149 million years ago.
In other languages
Ambystoma mexicanum (es), 墨西哥钝口螈 (zh), Ambystoma meksykańska (pl), 아홀로틀 (ko), אקסולוטל מקסיקני (he), Axolotl (fr) … and 27 more languages
More photos
2AxolotlAjolote albinoAmbystoma mexicanum Natural History Museum University of Pisa (cropped)
All 6 photos in the gallery →

镜头下的动物

站内动物的实拍影像——捕猎、打斗，还有各自过日子的样子。

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Tools

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Scaling lab

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Tree of life

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