Something which has not been proven or replicated and which, it seems, that a lot of evolutionary scientists try to steer away from.
You don’t understand either abiogenesis or evolution, Thaif.
Abiogenesis is more a very specific (and specialised) field of research in biochemistry.
Not everyone who study biochemistry are involved (study, research, work or any permutation of the three) in the origin of first life (thus abiogenesis).
Abiogenesis is a ongoing hypothesis that attempting to understand the origin of life, and they tried to form organic matters out of inorganic matters, through chemical reactions.
Most biochemistry students don’t touch abiogenesis or other origin of life hypotheses (eg abiogenesis from extraterrestrial sources).
These biochemistry students often go the medical research route when they leave universities, so abiogenesis subjects are irrelevant to most of them.
The reason why evolution differs from abiogenesis, is that evolution is study of biodiversity, as to why species change over time; it is not about the origin of first life.
Life have to already exist in order for evolution to be possible, because evolution is related to genetic inheritance, thus passing genetic traits, from parents to offspring. But evolution differed from ordinary genetics, because they don’t deal with individual families, but changes that occurred in populations.
And most people who do study biology, don’t study fossils.
Like abiogenesis, the study of fossils, or palaeontology, are specialised field, so not every biology students study palaeontology.
Zoologists and botanists, when they studied biology, they are most in areas of extant species and recently extinct ones, not ones that have been long extinct, like several million of years.
They would compare two or more extant species, to find out how they are related.
Here, at RF, I frequently like to use the brown bear and polar bear example. They are closely related; biologists, who specialised in family (Ursidae) and genus (Ursus), referred them to as “sister species”.
Meaning, the polar bears diverge from their southern cousins, the brown bears, at some point during the ice age, but they are still compatible enough to interbreed, whnen meet.
But the polar bears differ in many ways to the brown bears, both morphology and behaviour, and the differences are lot more than just outward appearance, eg colours of their furs.
All large bears can swim, but only polar bears are known to swim in the seas, and they are known to stay in water for days, and even weeks. Their feet are elongated, so they can paddle in water more efficiently (including swimming underwater) than other bears, but it also allow them to distribute their load, so they can walk on thin ice. And their claws give them better grips on ice.
The thickness and texture of the fur keep them warmer and it is better waterproof than that of the brown bears. Also keeping them warm is that they retained their body fat longer, which is another thing that insulated them from the cold, and that’s because their main diets are sea seals and sea lions, which have higher concentration of fat.
Lastly, brown bears hibernate during the cold winter, but polar bears don’t, because they are very active in the coldest times of the year.
That’s natural selection at work. The polar bears were once like their sister species, the brown bears, but they adapted tens of thousands of years, living in ice-sheet covered regions, but even when the ice sheets retreated during the warmer Holocene epoch, the polar bears have retreated to the polar regions, finding a niche where they are fitted.
Biologists who studied these two species, don’t need to research their more primitive ancestors.