Islamic views on evolution are diverse, ranging from theistic evolution to Old Earth creationism. Some Muslims around the world believe "humans and other living things have evolved over time", yet some others believe they have "always existed in present form". Some Muslims believe that the processes of life on Earth started from one single point of species with a mixture of water and a viscous clay-like substance. Muslim thinkers have proposed and accepted elements of the theory of evolution, some holding the belief of the supremacy of God in the process. Some scholars suggested that both narratives of creation and of evolution, as understood by modern science, may be believed by modern Muslims as addressing two different kinds of truth, the revealed and the empirical. Others argue that faith and science can be integrated and complement each other.

In Kitab al-Hayawan ('Book of the Animals'), the 9th-century Muslim scholar al-Jāḥiẓ references several facets of natural selection, such as animal embryology, adaptation, and animal psychology. One notable observation al-Jāḥiẓ makes is that stronger rats were able to compete better for resources than small birds, a reference to the modern day theory of the "struggle for existence". Al-Jāḥiẓ also wrote descriptions of food chains.

Animals engage in a struggle for existing, and for resources, to avoid being eaten, and to breed... Environmental factors influence organisms to develop new characteristics to ensure survival, thus transforming them into new species. Animals that survive to breed can pass on their successful characteristics to their offspring.

— Al-Jahiz, Book of the Animals

In 10th century Basra, an Islamic Encyclopedia titled Encyclopedia of the Brethren of Purity, expanded on the Platonic and Aristotelian concept of the great chain of being by proposing a causal relationship advancing up the chain as the mechanism of creation, beginning with the creation of matter and its investment with energy, thereby forming water vapour, which in turn became minerals and "mineral life", and has been proposed to be the earliest attested evolutionary framework by Muhammad Hamidullah. However, the Brethren text has been largely dismissed as a reading on pre-Darwinian evolution theory.

Ziauddin Sardar writes for New Statesman in 2008,

Creationism is not at all a natural Muslim position. In the early 10th century, Muhammad al-Nakhshabi wrote in The Book of the Yield: “While man has sprung from sentient creatures, these have sprung from plants, and these in turn from combined substances.” In Life of Hai by the 12th-century Andalusian philosopher ibn Tufayl, evolution is strongly emphasised. Hai is “spontaneously generated”, emerges from the slime, evolves through various stages and discovers the power of reason to shape his world and to understand the universe. In contrast, creationism has taken hold over the past decade in Muslim societies – Turkey, for example, came last, just behind the US, in a recent survey of 34 countries on public acceptance of evolution.

According to Sami S. Hawi, the 11th-century Persian scholar Ibn Miskawayh wrote about the evolution of man in his Fawz al-aṣghar.