Evolution theories
Life comes from the space
Arrhenius
Hoyle
Brought by a comet
It is impossible to born life only with the earth
Carl Sagan
Proteins were made from materials brought from space
Panspermia (Aliens)
Crick and Leslie
Life comes from intelligent beings that wanted to populate dead planets
Warmflash
Some microorganisms can survive in extreme space conditions
Adaptation
Wallace
Lamarck
Organisms change their traits in order to survive
Species change traits according to the environment and taking a lot of time
After Mandel
Eldredge and Gould
Some species are in the same shape for a long time, and then something happen to make them totally different from their ancestor.
Sheldrake
There is a morphogenetic pattern that could be expressed as a geometrical fact, this allows DNA to know about the mutations that have to be done