October 21st is Reptile Awareness Day, a moment to celebrate some of the most captivating and often misunderstood, creatures on our planet. From the ancient reptiles that roamed the Earth millions of years ago to the snakes and lizards in homes today, these animals have endured incredible challenges to survive. Yet many still face hardship, whether through poor care in captivity or the destruction of their wild habitats. This day is a call to action to ensure that reptiles continue to thrive for generations to come.
Meet the Fierce-Toothed Lizard That Changed What We Know About Reptiles
A fossil discovered near Sidmouth in Devon revealed the oldest known relative of modern lizards and snakes, the Agriodontosaurus helsbypetrae. This fierce-toothed lizard had large, formidable teeth and a powerful jaw, which suggests it was a highly skilled hunter. Its sharp teeth would have allowed it to pierce and shred tough insect exoskeletons, while its strong jaws and well-developed tongue helped it hold and manipulate prey.
Agriodontosaurus
This insect eating reptile lived over 241 million years ago during the Middle Triassic and belonged to the lepidosaur family, which includes snakes, lizards and the tuatara; a lesser-known but fascinating reptile species. Native to New Zealand, tuatara grow slowly, can live for over 100 years and are the only surviving members of an ancient reptile group that once shared the planet with dinosaurs.
Tuatara
During the Middle Triassic, as ecosystems shifted, reptiles like Agriodontosaurus began to fill ecological niches once occupied by mammal-like creatures that had dominated earlier periods. By the end of the Triassic, the ancestors of modern lizards and snakes had started to rise, coexisting with the dinosaurs in these newly established roles. Although the Agriodontosaurus is long extinct, its discovery has significantly advanced our understanding of reptile evolution. This rare fossil offers insights into the survival strategies of early reptiles and reveals how they adapted to changing environments. It sheds light on their head structure, hunting techniques and the unexpected evolutionary paths they took to thrive alongside the dinosaurs. Most notably, the fossil provides a unique glimpse into the early evolution of lepidosaurs, the group that would eventually give rise to modern reptiles like lizards and snakes.
From Prehistoric Hunters to UK Living Rooms
Fast forward to the present day and reptiles are increasingly popular pets in the UK, yet many face serious challenges in captivity. For example, bearded dragons, one of the most commonly kept species, are adored for their friendly temperament and manageable size. However, caring for a bearded dragon is far from simple. They need large, well-structured enclosures, correct UVB lighting for healthy bone development, balanced diets with fresh vegetables and insects and carefully monitored temperatures and humidity. Without these essentials, health problems such as metabolic bone disease, respiratory infections and stunted growth can develop, making even the most docile lizard unhappy and unwell.
Bearded Dragon
According to the RSPCA’s Exotic Pets Briefing 2021, a staggering 4,094 reptiles were involved in welfare cases over the course of just one year. Of these, 26% were cases of neglect or deliberate harm, 25% involved requests for assistance, another 25% were abandoned or found as strays and 13% were sick or injured. These alarming figures highlight the harsh reality that reptiles often suffer due to a lack of proper care and a widespread misunderstanding of their complex needs.
Helping Reptiles Thrive in Our Care
By understanding reptiles’ ancient lineage and their complex needs in the wild, we can improve care for captive reptiles while also safeguarding their wild counterparts. Each species has unique requirements, so what works for a leopard gecko may not be suitable for a corn snake, tortoise or bearded dragon. This makes it essential for owners to thoroughly research the specific needs of the species they care for.
Key requirements for keeping reptiles healthy:
UVB lighting is essential for calcium metabolism, bone health and immune function, though the strength and duration required varies by species.
Heat sources and basking spots provide reptiles with the external warmth they need for thermoregulation, digestion and activity, with basking temperatures differing depending on the species’ natural habitat.
Ambient temperature control maintains a steady background temperature suited to each species’ natural environment.
Humidity management supports healthy shedding, skin health and respiration, varying between tropical species that need higher humidity and desert species that require lower levels.
Clean, well-maintained enclosures reduce the risk of bacterial, fungal, or parasitic infections.
Species-appropriate diets meet the nutritional needs of herbivorous, carnivorous, or omnivorous reptiles, including supplements when required.
Fresh water supply must be clean and regularly replenished for both drinking and soaking.
Environmental enrichment provides hides, climbing structures, logs and plants, allowing natural behaviours such as climbing, burrowing and hiding.
Proper enclosure size ensures enough space for movement, stretching and normal activity, with size requirements varying greatly between species.
Safe substrates prevent ingestion, impaction, or skin irritation, with species-specific preferences taken into account.
Regular monitoring involves observing behaviour, appetite, shedding and weight to detect early signs of health issues.
Veterinary care ensures access to a reptile-experienced vet for routine checks, illnesses, or injuries.
Example of an RSPCA Bearded Dragon Enclosure
By meeting these essential care requirements we keep pet reptiles healthy, but pushing beyond the basics unlocks their full potential, letting them thrive, explore and show off the remarkable behaviours that make them truly captivating companions.
Protecting Reptiles in the Wild
The UK is home to a small but fascinating range of native reptiles, including the grass snake, adder, smooth snake, common lizard, sand lizard and the slow worm. These reptiles play vital roles in our ecosystems, such as controlling insect and small mammal populations. However, many of these species are facing increasing threats due to habitat destruction, climate change and human interference. The sand lizard, for instance, is considered a rare and protected species, largely confined to the heathlands and coastal dunes of southern England. Meanwhile the smooth snake and grass snake face pressure from urban expansion and changes in land use.
Conservation efforts are crucial to protecting these remarkable creatures. Organisations like Amphibian and Reptile Conservation (ARC) are actively working to monitor populations, restore vital habitats and implement reintroduction programmes for species such as the sand lizard. Some areas in the UK, including nature reserves and protected heathlands, have seen successful conservation efforts, with the sand lizard population making a slow but steady recovery. Additionally, creating wildlife-friendly gardens, reducing pesticide use and supporting local conservation initiatives can all help native reptiles thrive. By raising awareness of these species and the challenges they face, we can all contribute to preserving their future in the wild.
Sand Lizard
From the insect-hunting Agriodontosaurus of 241 million years ago to the bearded dragons found in homes today, reptiles have endured extraordinary changes over the ages. With careful and informed care, both in captivity and in the wild, they can continue to flourish alongside us.
Inspired by this blog? Why not enrol on the Level 3 Award in Reptile Studies and uncover the key to improving the lives of reptiles in captivity. Many reptiles suffer due to a lack of understanding of their complex biological and behavioural needs. By gaining in-depth knowledge of reptile biology, behaviour and natural history, learners can make a significant impact on their welfare. This course empowers you to become a dedicated advocate for reptile welfare, equipped with the expertise to make informed decisions that benefit these often-misunderstood creatures. Through education, we can create better environments for reptiles in captivity and contribute to their broader conservation and well-being in the wild.