What is the scientific name of the Yellow Tree Monitor?

The scientific name of the Yellow Tree Monitor is Varanus reisingeri.

What are other common names for the Yellow Tree Monitor?

The Yellow Tree Monitor is also known as Reisinger’s tree monitor.

Where are Yellow Tree Monitors native to?

Yellow Tree Monitors are native to Indonesia.

How big do Yellow Tree Monitors get?

Adult Yellow Tree Monitors typically reach about 36-42 inches.

How long do Yellow Tree Monitors live?

Yellow Tree Monitors live about 15-20+ years with proper care.

What temperatures does a Yellow Tree Monitor need?

Recommended temperatures for a Yellow Tree Monitor: 70-80°F cool side, 80-90°F warm side, and 115-120°F basking spot.

What humidity does a Yellow Tree Monitor need?

Yellow Tree Monitors need 60-90% humidity.

Do Yellow Tree Monitors need UVB lighting?

Yes. Recommended lighting for Yellow Tree Monitors: UVA/UVB required.

What size enclosure does a Yellow Tree Monitor need?

Recommended enclosure sizes for a Yellow Tree Monitor: Baby-Young: 18”x18”x36” (<6 months +), 36”x18”x36” (1 year +); Sub Adult-Adult: 48”x24”x48” (minimum), 72”x24”x48” (large/active adult).

What do Yellow Tree Monitors eat?

Yellow Tree Monitors eat: Primarily Insectivores: Crickets, dubia roaches, calcium worms (black soldier fly larvae), mealworms, hornworms, waxworms, silkworms, etc., Animal Protein.

Are Yellow Tree Monitors good for beginners?

Yellow Tree Monitors are not usually recommended for beginners; they are rated Advanced for keeper experience.

Are Yellow Tree Monitors nocturnal or diurnal?

Yellow Tree Monitors are diurnal (active during the day).

What is Yellow Tree Monitor behavior like?

Common Yellow Tree Monitor behavior traits: Food motivated; Foragers & ambush hunters; Hand feeding helps bond; Very curious; Can be skittish when young; Calm down with consistent and confident handling; Arboreal; Prehensile tail; Bites are painful; Captive bred babies are much calmer, and easier to socialize; Challenging to breed in captivity.

Do Yellow Tree Monitors lay eggs?

Yes. Yellow Tree Monitors are oviparous, meaning they lay eggs.

How many eggs does a Yellow Tree Monitor lay?

A Yellow Tree Monitor clutch is typically about 2-7 eggs.

How long do Yellow Tree Monitor eggs take to hatch?

Yellow Tree Monitor eggs typically incubate for about 150-190 days before hatching.

What is the best substrate for juvenile Yellow Tree Monitors?

Recommended substrates for juvenile Yellow Tree Monitors: ReptiEarth Fine Coconut Fiber Mix; Ready to Use and RediChip Premium Medium Sized Coconut Chips; Ready to Use.

What is the best enclosure for a Yellow Tree Monitor?

Recommended enclosures for Yellow Tree Monitors: Vivarium 48" Sliding Door Reptile Terrariums (4'x2').

What lighting products are best for a Yellow Tree Monitor?

Recommended lighting products for Yellow Tree Monitors by age. Juvenile: Arcadia 6% UVB D3 Forest Lighting. Sub-adult: Arcadia 6% UVB D3 Forest Lighting. Adult: Arcadia 12% UVB D3 Desert Lighting.

What heating products does a Yellow Tree Monitor need?

Recommended heating products for Yellow Tree Monitors by age. Juvenile: Arcadia GoldenSun Basking Halogen Heater and Vivarium Electronics Ceramic Dome Reflector. Sub-adult: Arcadia GoldenSun Basking Halogen Heater and Vivarium Electronics Ceramic Dome Reflector. Adult: Arcadia GoldenSun Basking Halogen Heater.

Is there a complete habitat bundle for Yellow Tree Monitors?

Yes. Recommended habitat bundles for Yellow Tree Monitors by age. Juvenile: Juvenile Yellow Tree Monitor Ultimate Habitat Bundle. Sub-adult: Subadult Yellow Tree Monitor Ultimate Habitat Bundle.

Yellow Tree Monitor

Common Name(s)	Yellow tree monitor Reisinger’s tree monitor
Scientific Name	Varanus reisingeri
Behavior	Diurnal (active during day) Food motivated Foragers & ambush hunters Hand feeding helps bond Very curious Can be skittish when young Calm down with consistent and confident handling Arboreal Prehensile tail Bites are painful Captive bred babies are much calmer, and easier to socialize Challenging to breed in captivity
Reproduction	Oviparous (Egg Layer) Gestation: ~30-45 days Clutch size: ~2-7 Incubation: ~150-190 days
Lifespan	~15-20+ years
Temperatures	70-80°F cool side 80-90°F warm side 115-120°F basking spot
Humidity	60-90%
Lighting	UVA/UVB required
Size	~36-42 inches
Enclosure Recommendations	Baby-Young: 18”x18”x36” (<6 months +) 36”x18”x36” (1 year +) Sub Adult-Adult: 48”x24”x48” (minimum) 72”x24”x48” (large/active adult)
Experience Level	Advanced *Parents should always be involved caring for any pet, until the child is 18 yrs.
Diet	Primarily Insectivores: Crickets, dubia roaches, calcium worms (black soldier fly larvae), mealworms, hornworms, waxworms, silkworms, etc. Animal Protein

Filter by age:

Best Bundles for Subadult Yellow Tree Monitors

Subadult Yellow Tree Monitor Ultimate Habitat Bundle

Best Substrates for Subadult Yellow Tree Monitors

ReptiChip Breeder Blocks and Bundles: Breeder Block

ReptiEarth Breeder Blocks and Bundles: Breeder Block

Best Enclosures for Subadult Yellow Tree Monitors

48" Sliding Door Reptile Vivarium (4x2): 180 Gallon 48x24x36 / Black

Best Lighting Products for Subadult Yellow Tree Monitors

Arcadia 6% UVB D3 Forest Lighting: LumenIZE® Smart UVB Kit / 48"

Best Heating Products for Subadult Yellow Tree Monitors

Arcadia GoldenSun Basking Halogen Heater: 75W

Vivarium Electronics Ceramic Dome Reflector: 8"

Best Bundles for Juvenile Yellow Tree Monitors

Juvenile Yellow Tree Monitor Ultimate Habitat Bundle

Best Substrates for Juvenile Yellow Tree Monitors

ReptiEarth Fine Coconut Fiber Mix; Ready to Use: 36 Quart

RediChip Premium Medium Sized Coconut Chips; Ready to Use: 36 Quart

Best Enclosures for Juvenile Yellow Tree Monitors

48" Sliding Door Reptile Vivarium (4x2): 180 Gallon 48x24x36 / Black

Best Lighting Products for Juvenile Yellow Tree Monitors

Arcadia 6% UVB D3 Forest Lighting: LumenIZE® Smart UVB Kit / 48"

Best Heating Products for Juvenile Yellow Tree Monitors

Arcadia GoldenSun Basking Halogen Heater: 75W

Vivarium Electronics Ceramic Dome Reflector: 8"

The Yellow Tree Monitor (Varanus reisingeri), also known as Reisinger’s Tree Monitor, is a striking arboreal species native to the island of Misool in Indonesia. One of the most remarkable features of this lizard is its vibrant yellow coloration, which distinguishes it from many of its closely related species. Its bright yellow body is covered in small black spots or bands, creating a stunning pattern that offers a form of camouflage in the dappled sunlight of the forest canopy. As an arboreal species, it spends most of its time high up in trees, relying on its slender body, sharp claws, and prehensile tail to expertly navigate the branches. This tail is particularly important, as it acts like a fifth limb, allowing the monitor to maintain balance and stability while moving through the dense foliage of its rainforest habitat.

In terms of behavior, Yellow Tree Monitors are highly intelligent and active, making them fascinating subjects for both observation in the wild and care in captivity. They are diurnal, meaning they are active during the day, and spend their time hunting for a variety of prey, including insects, small birds, eggs, and other small vertebrates. This opportunistic feeding behavior helps them play a crucial role in maintaining the balance of their ecosystem by controlling insect populations and occasionally dispersing seeds through their diet. Although relatively small compared to other monitor lizards, reaching about 36-42 inches in total length, their agility and intelligence make them adept hunters and survivors in their arboreal environment. Additionally, Yellow Tree Monitors are known to be shy and can be skittish when handled, which, along with their specific environmental needs, makes them more suited for experienced reptile keepers.

Native Range

Indonesia

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Common Yellow Tree Monitor ReptiChip Questions

: The scientific name of the Yellow Tree Monitor is Varanus reisingeri.
: The Yellow Tree Monitor is also known as Reisinger’s tree monitor.
: Yellow Tree Monitors are native to Indonesia.
: Adult Yellow Tree Monitors typically reach about 36-42 inches.
: Yellow Tree Monitors live about 15-20+ years with proper care.
: Recommended temperatures for a Yellow Tree Monitor: 70-80°F cool side, 80-90°F warm side, and 115-120°F basking spot.
: Yellow Tree Monitors need 60-90% humidity.
: Yes. Recommended lighting for Yellow Tree Monitors: UVA/UVB required.
: Recommended enclosure sizes for a Yellow Tree Monitor: Baby-Young: 18”x18”x36” (<6 months +), 36”x18”x36” (1 year +); Sub Adult-Adult: 48”x24”x48” (minimum), 72”x24”x48” (large/active adult).
: Yellow Tree Monitors eat: Primarily Insectivores: Crickets, dubia roaches, calcium worms (black soldier fly larvae), mealworms, hornworms, waxworms, silkworms, etc., Animal Protein.
: Yellow Tree Monitors are not usually recommended for beginners; they are rated Advanced for keeper experience.
: Yellow Tree Monitors are diurnal (active during the day).
: Common Yellow Tree Monitor behavior traits: Food motivated; Foragers & ambush hunters; Hand feeding helps bond; Very curious; Can be skittish when young; Calm down with consistent and confident handling; Arboreal; Prehensile tail; Bites are painful; Captive bred babies are much calmer, and easier to socialize; Challenging to breed in captivity.
: Yes. Yellow Tree Monitors are oviparous, meaning they lay eggs.
: A Yellow Tree Monitor clutch is typically about 2-7 eggs.
: Yellow Tree Monitor eggs typically incubate for about 150-190 days before hatching.
: Recommended substrates for juvenile Yellow Tree Monitors: ReptiEarth Fine Coconut Fiber Mix; Ready to Use and RediChip Premium Medium Sized Coconut Chips; Ready to Use.
: Recommended substrates for sub-adult Yellow Tree Monitors: ReptiChip Breeder Blocks and Bundles and ReptiEarth Breeder Blocks and Bundles.
: Recommended substrates for adult Yellow Tree Monitors: ReptiChip Breeder Blocks and Bundles and ReptiEarth Breeder Blocks and Bundles.
: Recommended enclosures for Yellow Tree Monitors: Vivarium 48" Sliding Door Reptile Terrariums (4'x2').
: Recommended lighting products for Yellow Tree Monitors by age. Juvenile: Arcadia 6% UVB D3 Forest Lighting. Sub-adult: Arcadia 6% UVB D3 Forest Lighting. Adult: Arcadia 12% UVB D3 Desert Lighting.
: Recommended heating products for Yellow Tree Monitors by age. Juvenile: Arcadia GoldenSun Basking Halogen Heater and Vivarium Electronics Ceramic Dome Reflector. Sub-adult: Arcadia GoldenSun Basking Halogen Heater and Vivarium Electronics Ceramic Dome Reflector. Adult: Arcadia GoldenSun Basking Halogen Heater.
: Yes. Recommended habitat bundles for Yellow Tree Monitors by age. Juvenile: Juvenile Yellow Tree Monitor Ultimate Habitat Bundle. Sub-adult: Subadult Yellow Tree Monitor Ultimate Habitat Bundle.