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Sculptures by Phyllis Bone


Skulls |  Reproduction
Crocodiles |  Snakes |  Turtles |  Lizards |  Tuatara
Reptiles are ectotherms and obtain heat from the external environment
Diagram showing the 3 pathways of heat exchange
In this diagram the lizard is:
1 gaining heat via radiation
2 gaining heat via conduction becasue its body temperature is lower than the ground temperature
3 losing heat via convection because its body temperature is greater than the air temperature