Great muslim Scientist

1. Al Jahiz Born 776 AD
He described the Theory of evolution about 1000 years before Darwin.
In his book “Kitab al-Hayawan” describing the characteristics of animals, he remarked::
"Animals engage in a struggle for existence; for resources, to avoid being eaten and to
breed. Environmental factors influence organisms to develop new characteristics to
ensure survival, thus transforming into new species. Animals that survive to breed can
pass on their successful characteristics to offspring.

2. Al Jahiz Born 776 AD
An early exponent of the zoological and anthropological sciences.
In his book “Kitab al-Hayawan” he mentions 350 varieties of animals.
Al-Jahiz discovered and recognized the effect of environmental factors on animal life.
He discusses animal communication, psychology and the degree of intelligence of
insect and animal species.
He also observed the transformation of animal species under different factors.
Furthermore, in several passages of his book, he also described the concept, usually
attributed to Charles Darwin, of natural selection.

3. Al Jahiz Born 776 AD
The most important of Al-Jahiz's works,is the Book of Animals - Kitab al-Hayawan .
It contains important scientific information and anticipates a number of concepts that were
not fully developed until the first half of the twentieth century.
In the book, al-Jahiz discusses animal mimicry -
noting that certain parasites adapt to the color of their host - and writes at length on the
influences of climate and diet on men, and plants and animals of different geographical
regions.
He discusses animal communication, psychology and the degree of intelligence
of insect and animal species.

4. Al Jahiz Born 776 AD
He gave the most detailed early description of food chains in nature with examples:
"The mosquitoes go out to look for their food, as they know instinctively that blood is the
thing which makes them live. As soon as they see the elephant, hippopotamus, or any
other animal, they know that the skin has been fashioned to serve them as food... all
animals, in short, cannot exist without food, neither can the hunting animal escape being
hunted in his turn.“
He also gives a detailed account of the social organization of ants, including from his
own observation, a description of how they store grain in their nests so that it does not
spoil during the rainy season.
He even knew that some insects are responsive to light - and used this information to
suggest a clever way of ridding a room of mosquitoes and flies.