Siamese Crocodile

Siamese Crocodile

Scientific Name: Crocodylus siamensis
Common Names: Siamese Crocodile

Maximum adult length: 3 metres (9.8 feet)


N.B. Exceptionally large specimens can be found in all species of crocodilian.


The Siamese crocodile is a freshwater crocodile native to Asia. Little is known about this critically endangered species, which has already been eradicated from many regions. We do know that in the wild they prefer slow moving waters like swamps, rivers, and lakes. Both male and female Siamese crocodiles look after newly hatched babies, and uniquely, this species is known to live together as a family unit.



IUCN Red List (September, 2014)


At the zoo

We currently have two pairs of Siamese crocodiles at the zoo, Hugo and Rebecca and the smaller Scar and Hayley.


With less than 1,000 mature adults left in the wild – some reports suggesting as few as 500, this critically endangered species is at even greater risk of hybridisation than other crocodilian species. In March 2013, following DNA testing, we received excellent news that all four individuals at Crocodiles of the World are genetically pure Siamese crocodiles.


Furthermore in May 2013, our smaller adult pair built an impressive nest-mound and laid a small clutch of 6 eggs. This was the first breeding attempt of our critically endangered Siamese crocodiles and the first instance of Siamese crocodile eggs being laid at a UK zoo. Sadly, on this occasion the eggs did not hatch, but we have high hopes that both pairs will help with future breeding efforts.



  • Oliver Siddons
  • Maisie Hussein
  • Freddie French
  • Catherine Cargill

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