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"Behaviour with a purpose": a young springbok stotting. A biologist might argue that this has the function of signalling to predators, helping the spr
"Behaviour with a purpose": a young springbok stotting. A biologist might argue that this has the function of signalling to predators, helping the springbok to survive and allowing it to reproduce.
The English natural theologian John Ray, and later William Derham, used teleological arguments to illustrate the glory of God from nature.
The English natural theologian John Ray, and later William Derham, used teleological arguments to illustrate the glory of God from nature.
Feathers today serve the function of flight, but they were co-opted rather than adapted for this task, having evolved for an earlier purpose in therop
Feathers today serve the function of flight, but they were co-opted rather than adapted for this task, having evolved for an earlier purpose in theropods like Sinornithosaurus millenii, perhaps insulation.
The watchmaker analogy argues that the presence of a complex mechanism like a watch implies the existence of a conscious designer.
The watchmaker analogy argues that the presence of a complex mechanism like a watch implies the existence of a conscious designer.
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White peppered moth
White peppered moth
Black morph in peppered moth evolution
Black morph in peppered moth evolution
Male moor frogs become blue during the height of mating season. Blue reflectance may be a form of intersexual communication. It is hypothesised that m
Male moor frogs become blue during the height of mating season. Blue reflectance may be a form of intersexual communication. It is hypothesised that males with brighter blue coloration may signal greater sexual and genetic fitness.
The common garter snake has evolved resistance to the defensive substance tetrodotoxin in its amphibian prey.
The common garter snake has evolved resistance to the defensive substance tetrodotoxin in its amphibian prey.