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Introduction

There’s a lot of buzz and misinformation about what constitutes a safe and healthy diet for a bearded dragon. One of the most hotly debated topics is bearded dragon food size. The prevailing myth is that incorrect prey size can be extremely dangerous for your pet. In this blog post, we’ll debunk this myth and delve into the fascinating world of evolutionary diets and prey theory.

Topics Discussed: Bearded Dragon Food Size

The Myth of Dangerous Prey Size

When it comes to bearded dragon food size, many believe that feeding your pet incorrectly sized prey could lead to severe consequences, including death. But is this notion grounded in fact?

Expert Insights on Bearded Dragon Food Size

Recently, I had the opportunity to speak with Cameron Young, the head of the world-renowned Center For Snake Conservation, who also works extensively with other reptiles. According to Cameron, the fear surrounding bearded dragon food size is largely exaggerated.

Evolutionary Perspective on Bearded Dragon Food Size

Here’s where things get interesting. Cameron suggests that it would be highly unlikely for evolution to create an opportunistic predator with such a pronounced dietary vulnerability. For those unfamiliar with evolutionary biology, the basic idea is that traits that make survival more difficult are unlikely to be passed down through generations.

The Basics of Evolution

Evolution operates on the principle of natural selection, where only the fittest survive and reproduce. Over time, a species adapts to its environment and dietary needs, optimizing its chances of survival. If bearded dragons were truly at such a high risk from eating prey of the wrong size, evolution would likely have weeded out this weakness long ago.

Prey Theory and Natural Diets

In nature, bearded dragons eat a variety of prey, ranging in size and type. They are opportunistic predators, meaning they’ll eat what they can get their hands on, not what fits a specific size guideline. This brings into question the prevailing belief about the dangers of bearded dragon food size.

Safe Practices and Balanced Diet

That said, it’s always wise to exercise caution and consult with a veterinarian for personalized advice. While the risks may be overstated, you should of course continue to take your pet’s health seriously.

Conclusion

When it comes to bearded dragon food size, it’s essential to separate myth from fact. As we’ve seen, both evolutionary science and expert opinions suggest that the dangers of incorrect prey size are largely exaggerated. Still, it’s advisable to consult your veterinarian for personalized advice about your bearded dragon’s dietary needs.

Further Reading:

Baby Bearded Dragon Diet

More About Cameron Young

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Author: saveonenergy.ca

This energy company writes an article describing the average humidity of homes. The article was not intended for reptile care use, but provides a good benchmark for your likely humidity levels inside your home. 

Behavior of the terrestrial nocturnal lizards Goniurosaurus kuroiwae kuroiwae and Eublepharis macularius (Reptilia: Eublepharidae) in a thigmothermal gradient

Authors: Yehudah Werner, William Mautz, Hiroo Takahashi, Hidetoshi Ota

This paper describes the behavior of leopard geckos when given the freedom to thermoregulate their internal temperature on a wide temperature gradient. Their results provide an estimate average temperature of the leopard gecko. 

Guidelines for Inspection of Companion and Commercial Animal Establishments

Authors: Clifford Warwick, Mike Jessop, Phillip Arena, Anthony Pilny and Catrina Steedman

This source, written by a team of veteran reptile researchers, outlines a guideline and system for establishing the minimum enclosure size for a variety of exotic animals. The authors note that this system is just an estimation. The estimation provided by their system is fairly in line with a number of anecdotal sources/best practices from other care authorities.

Natural history and biology of hobbyist choice leopard gecko

Author: Muhammad Sharif Khan

This source, written by a researcher at a Herpetological Laboratory in the leopard geckos native habitat of Pakistan provides a detailed account of the leopard geckos natural habit and behavior. Due to the political environment that has surrounded the country for many years, we are very grateful for Muhammad’s research.

Conversation and study with Cameron Young

Author: Cameron Young

This source is not a documented research paper. Rather it’s information provided direct from an expert. Cameron is the founder and executive director of The Center For Snake Conservation, and their educational wing My Nature Lab. He and his team have personally cared for thousands of reptiles with impressive effectiveness. They have a wealth of knowledge on the biology and proper care of reptiles. 

Does Loose Substrate Cause Impaction in Bearded Dragons and Other Reptiles?

Author: Mariah Healey

This blog post breaks down the common myth that loose substrate can cause impaction. There are a couple of points to this issue. Impaction is caused by improper care, not the loose substrate we advocate here. 

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Author: CHARLES M. BOGERT

This paper describes the thermoregulation of reptiles. By providing a basis and explanation of the adaptation from an evolutionary point of view, we quickly see the importance for captive care. 

Temperature and respiratory function in ectothermic vertebrates

Authors: Glauber S.F. da Silva, Mogens L. Glass, Luiz G.S. Branco

This paper describes the importance of proper thermoregulation in reptiles. It explores the biological processes in vertebrates that are impacted by internal temperature. With this research a strong case is made for the impotence of temperature in proper husbandry. 

Multiple Sources Used

Authors: N/A

We used a multi-source approach to ensure this temperature recommendation was spot on. We consulted My Nature Lab, who cares for hundreds of reptiles, including quite a few leopard geckos. Utlizing their guidelines,  research on their wild habitat, and their ideal temperature, we landed on this gradient as optimal. In theory, a different gradient could be just as successful at enablding proper theormoregulation. It should be well back and based in the research.

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Author: Mariah Healey

This blog style care guide pulls in various research and expert opinions. This page specifically reviews the author’s care guidelines for leopard gecko’s regarding lighting, temperature, and humidity. 

Temperature preference in geckos: Diel variation in juveniles and adults

Author: Yehudah Werner

This paper looks into the temperature preferences of leopard geckos throughout the entire day. They offered the animals a strong temperature gradient enabling the animals complete freedom to move around as they desired. The witnessed behaviors provide insight into the needs of geckos in captivity.

Guidance from My Nature Lab

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Author: Nikoletta Hetényi, Zsolt Lang, Tamás Sátorhelyi, István Hullár

This research paper analyzes the effects of various Vitamin D sources and their effects on bearded dragons and tortoises. While this research is specific to these species, it does provide a well crafted overview of the risks of low Vitamin D in all reptiles.

The nocturnal leopard gecko (Eublepharis macularius) uses UVb radiation for vitamin D3 synthesis

Authors: D.G.A.B. Oonincx, J.J.E. Diehl, M. Kik, F.M. Baines, A.C. Heijboer, W.H. Hendriks, G. Bosch

This research paper analyzes the effects of UVB exposure to Vitamin D3 synthesis in leopard geckos. The results suggest minimal UVB exposure, only 2 hours a day, is sufficient for a significant increase in Vitamin D3 synthesis. The results also suggest dietary Vitamin D3 can be sufficient, with a couple of caveats.

Effects of vitamin D3 supplementation and UVb exposure on the growth and plasma concentration of vitamin D3 metabolites in juvenile bearded dragons (Pogona vitticeps)

Authors: D.G.A.B. Oonincx, Y. Stevens, J.J.G.C. van den Borne, J.P.T.M. van Leeuwen, W.H. Hendriks

This research paper analyzes the effects of different Vitamin D sources in a common pet, the bearded dragon. This source was used however to determine the likelihood that feeder insects can provide adequate Vitamin D strictly from diet absorption. The source is very clear: many common feeder insects are lacking in Vitamin D. 

Insectivorous reptile nutrition and disease (Proceedings)

Author: Ryan S. De Voe, DVM, MSpVM, DACZM, DABVP

This article written by an experienced reptile vet, discusses the basics of insectivorous reptile nutrition, paying particular attention to the role vitamin A and Vitamin D play in a healthy diet. The author notes a handful of challenges in using supplementation to combat malnutrtional disorders. Notably, the varying quality, and possiblity of vitamin and mineral toxicity causes by overuse of supplements. 

Evaluating the Physiologic Effects of Short Duration Ultraviolet B Radiation Exposure in Leopard Geckos (Eublepharis macularius)

Authors: Amelia Gould, DVM, Laure Molitor, MS, DVM, Kelly Rockwell, MZ, DVM, Megan Watson, DVM, MS, Mark A. Mitchell, DVM, MS, PhD, DECZM (Herpetology)

This research study seeks to determine if leopard geckos are able to synthesize Vitamin D with use of UVB like other reptiles. The study results found that leopard geckos exposed to only 2 hours of UVB are able to synthesize a significant amount of Vitamin D without dietary supplementation. The authors additional share some concerns over exposing leopard gecko’s to 12 hours of UVB, especially if the animal does not have access to shelter. 

SOURCE NAME

Explanation of how we used the source. This source provides clear guidance on the importance of diet diversity. It should also include a bit about the source. Mark Mitchell is a well known researcher and has published 200 book chapters.