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Reptiles · Squamata · Teiidae

Black-and-white Tegu

Tupinambis merianae

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

The Argentine black-and-white tegu (Salvator merianae) is a species of lizard of the family Teiidae. It is an omnivorous reptile that lays eggs. It is generally not considered dangerous, and given its sociable nature and strong personality, it has caught many people's attention and is consequently sought after as a pet on occasion.

Weight

2.5 kg – 7 kg

Size

1 m – 1.4 m

Life expectancy

20 years

Diet

Omnivore

Combines animal and plant food depending on availability.

Activity

Diurnal

Active mainly during the day.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Easy

SavannaTemperate forestGrassland
6countries41parks3same family

Fun facts

  • It is partly endothermic: during the breeding season it raises its body temperature up to ten degrees above the surroundings by generating its own metabolic heat, something once thought unique to birds and mammals and described in this species in 2016.
  • It is established as an invasive species in Florida, where it preys on the nests of gopher tortoises and American alligators and where active trapping programmes are in place.
  • It hibernates for several months in burrows it digs itself, and during that period its metabolism drops to minimal levels.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (reptile)
Habitat and environment
Dry forest, cerrado, grassland and farmland of central and southern South America
Sexual maturity
3 years
Gestation / incubation
60 days of incubation
Litter / clutch size
30 eggs

Sources consulted: https://es.wikipedia.org/wiki/Salvator_merianae

Where to find it

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 41.

Related species

Other species in the catalogue with the most in common with Black-and-white Tegu — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Shares a park
Shares a park
Shares a park

Keep exploring

Based on what we already know about black-and-white tegu.

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See full glossary
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The pins mark the parks where its presence is documented.

See its range on the interactive map→
TalampayaArgentina
Ischigualasto (Valley of the Moon)Argentina
IberáArgentina
El PalmarArgentina
Pantanal MatogrossenseBrazil
Chapada DiamantinaBrazil
Lencois MaranhensesBrazil
Defensores del ChacoParaguay
Esteros de FarraposUruguay
Iguazú National ParkArgentina
See all 41 parks
Black TeguLeast Concern

Black Tegu

Tupinambis teguixin

Least Concern

Northern Caiman Lizard

Dracaena guianensis

Least Concern

Giant Ameiva

Ameiva ameiva

Least Concern

Red-winged Tinamou

Rhynchotus rufescens

Least Concern

Crested Caracara

Caracara plancus

Least Concern

Eastern Kingbird

Tyrannus tyrannus

CountriesBrazil
ParksTalampayaArgentina
TagsOmnivore
Omnivore
Diurnal
Solitary
Reptile
Savanna
Temperate forest
Grassland
Brazil
Argentina
Uruguay
Paraguay
Bolivia
United States