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Gallica
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Basophil
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Spinel structure
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Lesser kestrel
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Nuclear reaction
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Loose pack ice
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Interambulacrum
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Thermosiphon
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Artesian well
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Apnoea
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Neurotransmitter
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Enhanced coal bed methane recovery
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Span-wise ice accretion
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Echolalia
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Lymphadenopathy
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Crystalline facies
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Soyuz / ST
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Greengage
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New Worlds Observer
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Eczema
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Duchenne myopathy
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Public domain software
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Argilite
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Ichneumonidae
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FSC
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Haplodiploidy
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Cortisone
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Bathymetry
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Nasal polyp
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Container return scheme
Convergent evolution
Convergent evolution is a curious feature of evolution which is well known to biologists.
The term convergence is used when natural selection leads to acquisition of similar structures or abilities within lines that have evolved differently, but have been subject to similar environmental conditions.
One of the best known examples is the development of the wing for flying in birds, in bats (mammals), and pterosaurs.
Homologous wings of the pterosaur (1), bat (2), and bird (3) are the consequence of convergent evolution. © John Romanes, public domain
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