- Brothers Island Tuatara (Sphenodon guntheri)
- Offers images, facts and status, description, range and habitat, biology, threats, and protection.
- Brothers Island Tuatara (Sphenodon guntheri)
- IUCN Red List contains taxonomy, assessment, habitat, range, and ecology.
- Kiwi Conservation Club: The Tuatara
- Gives overview, appearance, behavior, species, reproduction, trivia, threats, and conservation.
- Northern Tuatara (Sphenodon punctatus)
- Covers description, range, habitat, diet, reproduction, behavior, and conservation status.
- San Diego Zoo: Tuatara
- Looks at fun facts, appearance, life cycle, nesting, diet, breeding, threats, and recovery program.
- TerraNature: Tuatara
- Looks at history, appearance, mating, lifespan, traits, diet, status, and pictures.
- Tuatara (Sphenodon punctatus)
- Animal Diversity presents picture, range, habitat, appearance, diet, behavior, breeding, and status.
- Tuatara: Species Sphenodon punctatus
- Explores classification, related animals, where they live, reproduction, and how long they live. With video and photograph.
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