De site Darwin-online.org bevat links naar de oorspronkelijke tekst van de eerste 6 edities van 'The origins of species'. De tekst van de 2e editie is gebruikt als bron bij dit artikel. Gearchiveerd op 17 juni 2023.
Teachernet, Document bank. Creationism teaching guidance. UK Department for Children, Schools and Families (18 september 2007). Geraadpleegd op 1 oktober 2007. "The intelligent design movement claims there are aspects of the natural world that are so intricate and fit for purpose that they cannot have evolved but must have been created by an 'intelligent designer'. Furthermore they assert that this claim is scientifically testable and should therefore be taught in science lessons. Intelligent design lies wholly outside of science. Sometimes examples are quoted that are said to require an 'intelligent designer'. However, many of these have subsequently been shown to have a scientific explanation, for example, the immune system and blood clotting mechanisms. Attempts to establish an idea of the 'specified complexity' needed for intelligent design are surrounded by complex mathematics. Despite this, the idea seems to be essentially a modern version of the old idea of the "God-of-the-gaps". Lack of a satisfactory scientific explanation of some phenomena (a 'gap' in scientific knowledge) is claimed to be evidence of an intelligent designer."
De site Darwin-online.org bevat links naar de oorspronkelijke tekst van de eerste 6 edities van 'The origins of species'. De tekst van de 2e editie is gebruikt als bron bij dit artikel. Gearchiveerd op 17 juni 2023.
