Reptile
Leatherback Sea Turtle
The giant jellyfish specialist
Trusted wildlife guides
Thursday, 22 October 2026Browse
Popular groups
Tools
Questions
Reference
Health
Choosing and living with pets
Understand
Help
Read
Play and teach
The guide features 54 species in the reptile class. Each profile answers the most-searched questions first.
Reptiles are cold-blooded (ectothermic) vertebrates covered in protective scales or scutes. Most lay leathery-shelled eggs on land and rely on the environment — basking or sheltering — to regulate their body temperature. The group includes snakes, lizards, turtles, crocodilians, and the tuatara, ranging from millimetre-scale geckos to the saltwater crocodile at over 6 metres.
Reptile
The giant jellyfish specialist
Reptile
The tortoiseshell turtle
Reptile
The prehistoric lure-fishing giant of American rivers
Reptile
Africa's fast and feared elapid snake
Reptile
The powerful-jawed sea turtle
Reptile
World's most venomous snake by lab toxicity
Reptile
Common US pit viper with hourglass bands
Reptile
The friendly desert lizard and favorite pet reptile
Reptile
World's longest snake
Reptile
Largest rattlesnake of North America
Reptile
The armored survivor of the southern swamps
Reptile
The color-changing lizard with 360-degree eyes
Reptile
Heavy African viper linked to many snakebites
Reptile
Eyelash-crested gecko of New Caledonia
Reptile
Heavy rainforest viper with huge fangs
Reptile
The largest living reptile and most powerful bite on Earth
Reptile
The gentle constrictor that curls into a ball
Reptile
The common crocodilian of the Americas
Reptile
North America's hinged turtle
Reptile
Living-fossil reptile unique to New Zealand
Reptile
Large African water monitor and egg predator
Reptile
Familiar harmless snake of North American yards
Reptile
Brightly banded venomous elapid of the Southeast
Reptile
The world's longest venomous snake
Reptile
The pond slider of North America
Reptile
Horned rattlesnake that sidewinds across dunes
Reptile
Tall-casqued chameleon of the Arabian Peninsula
Reptile
Arboreal African snake with potent venom
Reptile
The largest lizard on Earth
Reptile
Stocky Australian skink with a blue tongue
Reptile
Jesus Christ lizard that runs on water
Reptile
Spiky desert lizard that drinks via skin channels
Reptile
The gentle, long-lived grazer of tropical seas
Reptile
Colour-changing lizard of southern US gardens
Reptile
The giant tortoise that can live over a century
Reptile
Rock-dwelling desert lizard that inflates to wedge itself
Reptile
Africa's largest and most formidable predator of the rivers
Reptile
The heaviest snake in the world
Reptile
The powerful constricting snake of the Americas
Reptile
Lightning-fast elapid of Australian cane fields
Reptile
Emerald coil of the Amazon canopy
Reptile
Lime-green python of Papuan rainforests
Reptile
Locale-coloured chameleon of Madagascar
Reptile
The venomous pit viper with a warning rattle
Reptile
The gentle, colorful beginner's pet snake
Reptile
The powerful-jawed freshwater turtle of North America
Reptile
The lizard that flares a dramatic neck frill
Reptile
One of the largest lizards in the world
Reptile
The spotted desert gecko and beginner-friendly pet
Reptile
One of the few venomous lizards
Reptile
One of North America's most common and widespread snakes
Reptile
Britain's only venomous snake
Reptile
The fish-eating crocodilian with a long, narrow snout
Reptile
The large tree-dwelling lizard of the tropics
Reptiles are cold-blooded (ectothermic) vertebrates covered in protective scales or scutes. Most lay leathery-shelled eggs on land and rely on the environment — basking or sheltering — to regulate their body temperature. The group includes snakes, lizards, turtles, crocodilians, and the tuatara, ranging from millimetre-scale geckos to the saltwater crocodile at over 6 metres.
The Global Animal Guide currently features 54 reptiles with full, answer-first profiles covering diet, habitat, size, and conservation status.