Reptiles in the Wild: An Introduction
A free introduction to the biology, behaviour, adaptations and conservation of reptiles in their natural environments.
- Level
- Beginner
- Study time
- ~1 hour
- Modules
- 4
- Lessons
- 26
- Assessment
- Module quizzes · graded certificate
- Version
- v1.0 · reviewed 22 October 2026
What you'll learn
- ✓Explain what makes a reptile a reptile and describe the major living groups
- ✓Describe how reptiles regulate their temperature, conserve water and sense their surroundings
- ✓Interpret reptile feeding, reproduction, seasonal activity and communication scientifically
- ✓Explain the main threats to wild reptiles and how field herpetologists study them
- ✓Observe wild reptiles responsibly and think like a field herpetologist
About this course
Reptiles inhabit some of the most remarkable environments on Earth, from scorching deserts and tropical rainforests to freshwater wetlands, mountain ranges and open savannahs. Although often misunderstood, these animals have evolved an extraordinary range of adaptations that allow them to survive, reproduce and thrive in environments that would challenge many other vertebrates.
In this free course you'll explore reptiles as wild animals first and foremost: what makes a reptile a reptile, the adaptations that keep them alive, their behaviour and ecology, and the threats they face and how scientists study and protect them.
Across four short modules you'll find clear explanations, real-world examples and key learning points, with a glossary and a short quiz at the end of each module. Complete all four and you'll receive a verifiable certificate of completion.
It's ideal for reptile keepers, wildlife enthusiasts, students and anyone fascinated by the natural world, and a first step towards HWA's full courses in herpetology and reptile care.
Cover photo: a panther chameleon in Lokobe National Park, Madagascar. Photo: Diego Delso, CC BY-SA 4.0, via Wikimedia Commons.
Course content
4 modules · 26 lessons · ~1 hour study time
Module 1The World of Reptiles6 lessons
- What is a reptile?What this free course covers, and the shared biology that makes a reptile a reptile, from ectothermy to scaly, water-resistant skin.Free preview8 min
- The major groups of reptilesLizards, snakes, turtles and tortoises, crocodilians and the tuatara, with a wild example of each group's role in nature.6 min
- Where do reptiles live?How reptiles survive in deserts, rainforests, grasslands and water, and why the microhabitat an animal uses matters as much as the wider habitat.6 min
- Why biodiversity mattersWhat biodiversity is, the ecological roles reptiles play and why losing a species can affect a whole ecosystem.5 min
- Module 1 glossaryKey terms from Module 1, from behavioural thermoregulation to tuatara.4 min
- Module 1 quizTest your understanding of Module 1: 5 multiple-choice questions. Pass mark 60%.20 min
Module 2Reptile Adaptations and Survival6 lessons
- Temperature: controlling the conditions of lifeHow temperature shapes reptile activity, digestion and development, and the strategies reptiles use to control it.8 min
- Surviving with limited waterHow reptiles in dry places save water through water-resistant skin, uric acid excretion and careful behaviour.6 min
- The extraordinary senses of reptilesHow reptiles sense their world through chemical cues, heat, vision, vibration and touch.7 min
- Camouflage, defence and avoiding predatorsHow reptiles stay hidden or make an attack too costly, from camouflage and escape to tail autotomy and venom.7 min
- Module 2 glossaryKey terms from Module 2, from basking to vomeronasal organ.4 min
- Module 2 quizTest your understanding of Module 2: 5 multiple-choice questions. Pass mark 60%.20 min
Module 3Reptile Behaviour and Ecology7 lessons
- Hunting, feeding and the food webHow reptiles find food as ambush predators, active foragers, herbivores and omnivores, and where they fit in food webs.8 min
- Reproduction and parental careEgg-laying and live birth, how nest sites and temperature affect development, and the surprising range of parental care in reptiles.7 min
- Seasonal activity and survivalHow temperature, rainfall and food change reptile activity through the year, including brumation and aestivation.6 min
- Communication and social interactionsHow reptiles signal to one another, why gatherings are not always social, and how to record behaviour scientifically.7 min
- Reptiles and the balance of ecosystemsHow reptiles interact with plants and other animals through predation, competition, seed dispersal, scavenging and shared shelter.5 min
- Module 3 glossaryKey terms from Module 3 on reptile behaviour and ecology.4 min
- Module 3 quizTest your understanding of Module 3: 5 multiple-choice questions. Pass mark 60%.20 min
Module 4Reptile Conservation and Field Herpetology7 lessons
- The major threats facing reptilesHabitat loss and fragmentation, collection and trade, climate change, pollution and invasive species, and why threats interact.8 min
- How do scientists study reptiles in the wild?Visual encounter surveys, cover objects, camera traps, radio telemetry and environmental DNA, and why reliable data depends on knowing their limits.8 min
- How to observe reptiles responsiblyPrinciples for watching wild reptiles safely and without disturbance, recording what you see and sharing sightings responsibly.5 min
- Conservation in practice: what can be done?Habitat protection, monitoring, education, responsible keeping, and the roles of CITES and the IUCN Red List.7 min
- Thinking like a field herpetologistHow to weigh alternative explanations before drawing conclusions, and the end of your introduction to reptiles in the wild.6 min
- Module 4 glossaryKey terms from Module 4 on reptile conservation and field herpetology.4 min
- Module 4 quizTest your understanding of Module 4: 5 multiple-choice questions. Pass mark 60%.20 min
Who this course is for
- Reptile keepers who want to understand their animals as wild species
- Wildlife enthusiasts and nature lovers
- Students and aspiring herpetologists
- Anyone fascinated by the natural world
Assessment & certificate
Each module ends with a quiz that is marked automatically: multiple-choice questions plus a written section where you explain what you've learned in your own words. You can take each quiz once and cannot retake it, and you'll see the correct answer to any question you got wrong.
When you've completed every module, you receive a certificate of completion with a unique verification code, graded on your average score across all the module quizzes:
- PassUp to 69%
- Merit70–79%
- Distinction80–100%
Everyone who completes every module receives a certificate.
This certificate confirms completion of an online, theory-based course and a passed online assessment. It is not an accredited qualification and does not certify practical competence.