A very pregnant Blue Tongue Lizard

Bretrick

Well-known Member
Female on the left, most likely the father on the right.
Blue Tongue Lizards give birth to live young whereas other lizards lays eggs.
They are Ovoviviparous, which means their eggs hatch inside of the mother.
1 to 15 babies will be born between December and April.
I will be out there in December to hopefully photograph a baby or two.
 

I’ve got one in my back yard , he’s quite big ..I’m presuming it’s a he ….i see him out and about yesterday and he just looked at me ( he used to sorta hiss at me ) but he’s been here about 8-9 years , I'm not even sure how long they live ?
He‘s very shiny and I used to threaten him I’d take him to a nearby golf course if he ate my young pumpkin plants again …he ignored me ..and did it again …so my DH made a little fence for me to put around the young plants
Ill take a photo next time I see him snoozing up the side of my home , I’m not even sure where it lives in the winter , I’m just guessing it’s under the fairly small wood shed .
 
I’ve got one in my back yard , he’s quite big ..I’m presuming it’s a he ….i see him out and about yesterday and he just looked at me ( he used to sorta hiss at me ) but he’s been here about 8-9 years , I'm not even sure how long they live ?
He‘s very shiny and I used to threaten him I’d take him to a nearby golf course if he ate my young pumpkin plants again …he ignored me ..and did it again …so my DH made a little fence for me to put around the young plants
Ill take a photo next time I see him snoozing up the side of my home , I’m not even sure where it lives in the winter , I’m just guessing it’s under the fairly small wood shed .
Google tells me they can live up to 30 years in the wild, up to 20 years in captivity.
I can find no explanation for the shorter lifespan in captivity. 🤷‍♂️
 

I’ve got one in my back yard , he’s quite big ..I’m presuming it’s a he ….i see him out and about yesterday and he just looked at me ( he used to sorta hiss at me ) but he’s been here about 8-9 years , I'm not even sure how long they live ?
He‘s very shiny and I used to threaten him I’d take him to a nearby golf course if he ate my young pumpkin plants again …he ignored me ..and did it again …so my DH made a little fence for me to put around the young plants
Ill take a photo next time I see him snoozing up the side of my home , I’m not even sure where it lives in the winter , I’m just guessing it’s under the fairly small wood shed .
AI response to my question; Why do captive bred Blue Tongue Lizards have a shorter lifespan than wild Blue Tongue Lizards.


Factors Influencing Lifespan of Captive Bred vs. Wild Blue Tongue Lizards


Blue Tongue Lizards (Tiliqua spp.) are popular reptiles known for their distinctive blue tongues and relatively docile nature. While these lizards can live long lives in both wild and captive environments, there are several factors that contribute to the observed shorter lifespan of captive bred individuals compared to their wild counterparts.

1. Genetic Diversity

One significant factor affecting the lifespan of captive bred Blue Tongue Lizards is genetic diversity. Wild populations typically exhibit a broader genetic pool due to natural selection pressures, which can lead to greater resilience against diseases and environmental changes. In contrast, captive breeding often involves a limited number of breeding pairs, which can result in inbreeding. Inbreeding reduces genetic variability and can increase susceptibility to inherited health issues, potentially leading to a shorter lifespan.

2. Environmental Conditions

Wild Blue Tongue Lizards thrive in diverse habitats where they have access to natural resources such as varied diets, shelter, and space for movement. These conditions allow them to engage in natural behaviors that promote health and longevity. Captive environments, however, may not replicate these conditions adequately. Factors such as limited space, lack of environmental enrichment, and artificial lighting can lead to stress and behavioral issues in captive lizards.

3. Diet and Nutrition

The diet of Blue Tongue Lizards in the wild consists of a variety of insects, fruits, vegetables, and other organic materials that provide essential nutrients necessary for their health. In captivity, owners may not always provide a balanced diet or may rely on commercial foods that do not meet all nutritional needs. Poor nutrition can lead to metabolic disorders or deficiencies that negatively impact overall health and longevity.

4. Stress Factors

Captive bred lizards often experience higher levels of stress compared to those living in the wild due to factors such as handling by humans, confinement in small enclosures, and exposure to unnatural stimuli (e.g., loud noises or bright lights). Chronic stress has been shown to weaken immune responses and contribute to various health problems that can shorten lifespan.

5. Disease Management

In the wild, Blue Tongue Lizards develop immunity through exposure to pathogens present in their environment over time. However, captive bred lizards may be more susceptible to diseases if they are not properly quarantined or if they come from breeders with poor hygiene practices. Additionally, the stress associated with captivity can exacerbate health issues related to disease.

6. Veterinary Care Access

While captive lizards may have better access to veterinary care than wild ones—potentially allowing for treatment of ailments—this does not always translate into longer lifespans if underlying issues related to genetics or environment are not addressed effectively.

In summary, while both wild and captive bred Blue Tongue Lizards have the potential for long lifespans, various factors including genetic diversity limitations, environmental conditions, dietary differences, stress levels, disease susceptibility, and veterinary care access contribute significantly to why captive bred individuals often experience shorter lifespans than their wild counterparts.

Probability of Correctness: 95%
 
Thanks @Bretrick interesting reading , took notes of the captive part ….my Resident BT used to go out under our side side gates and return latter in the day , it always had a smaller one with it and I wasn’t sure if it was a mate or a young one , haven’t seen that one in quite a while
Ive got fruit trees and I’ve seem him munching on apples 🍎and peaches in summer.
This one still appears in the cooler months as long as the suns shining ,cause we get a pest weed in our small back lawn in winter it’s like a brown looking clover , it gets a tiny yellow flower and the sleepy likes nipping them off
 
Here is mine , it’s a fairly warm day out today …so it’s sitting under a rainwater tank where nothing grows @Bretrick
This one would be a good …12. inches long …must be all the fruit it eats an the warmer months and i always bury my veggie scraps in the garden with a few on top for the sleepy to munch on if it wishes to

Im trying to decide If it’s a largish “ expecting “ female of a male ….. I might google how to tell the difference.


IMG_7734.jpeg
 
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This is so interesting...
I’m not even sure if these are found in countries other than Australia . ( I’ve heard of them being smuggled to overseas countries where apparently they can fetch big money )
Sadly many our our creature’s/ birds have suffered from people trying to smuggle wild life

Aussie member @Bretrick lives 3.000 + km from where I live …but we are both Dinky Di ***** ….Aussies who live far away from suburbia, so we get to see a few animals / mammals in the wild natural Australian bush @oldlad_
@Imogene

**** meaning of Dinky Di ***
Genuine, true
dinky-di (not comparable) (Australia, slang) Genuine, true. (by extension) Authentically Australian. Honest, on the level.
 
Interesting reading from both of you🤠

“I will be out there in December to hopefully photograph a baby or two.”

@Bretrick I hope you are able to get baby pictures, I would enjoy seeing them.

I’m sure I could find fotos on line but I much prefer looking at pictures forum members have captured🤠🤠
The best time for me to hopefully see them would be at least an hour after sunrise.
All lizards need to heat their blood to become active.
I regularly see blue tongues basking in the sun early morning.
I photographed this Bearded Dragon early one morning. I was able to get very close as torpidity was his demeanor, what with his blood not yet warmed enough to scurry away.


 
Here is mine , it’s a fairly warm day out today …so it’s sitting under a rainwater tank where nothing grows @Bretrick
This one would be a good …12. inches long …must be all the fruit it eats an the warmer months and i always bury my veggie scraps in the garden with a few on top for the sleepy to munch on if it wishes to

Im trying to decide If it’s a largish “ expecting “ female of a male ….. I might google how to tell the difference.


View attachment 381952
Great photo. Looks very much like a Shingleback Lizard.
 

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