According to evolution, fish tend to flourish in the mountain ranges

Image courtesy of Isaac Szabo. 

Joel Kontinen 

According to evolution, biodiversity is typically high in mountain ranges. most likely because of tectonic activity and wide range of environments, However, mountain diversity often occurs within environments and in ranges that have long ceased being tectonically active.

 As an example, Stokes et al. describe diversification among lineages of a freshwater fish species that have an affiliation with metamorphic rock.

 

So the science says that the environment has a say in the evolution of fish. This could also be due to intelligent design,. 

 Source: 

Vignieri,,  Sacha, 2023.  It’s the rocks.  Science 27 May. 

Biodiversity on Some Alien Planets May Dwarf That of Earth

Kepler-62f. Image courtesy of NASA/Ames/JPL-Caltech.



Joel Kontinen

It seems that we don't have optimum ocean-circulation patterns on Earth.

"Earth's dazzling biodiversity may not be so remarkable in the cosmic scheme of things, a new study suggests.

Alien planets with more favourable ocean-circulation patterns might support life in even greater abundance and variety than our own world does, the study determined.

"Life in Earth's oceans depends on upwelling (upward flow), which returns nutrients from the dark depths of the ocean to the sunlit portions of the ocean where photosynthetic life lives," study leader Stephanie Olson, of the University of Chicago, said in a statement."

However, we do not know the state of affair on exoplanets. We do not know, for instance, if a planet's contains phosphorus, without which which we would not have RNA , DNA, and our ATP, and thus we would not have life. And also if it contains all ingredients that make life necessary.



Source:

Wall, Mike. Biodiversity on Some Alien Planets May Dwarf That of Earth. Space.com. (23.8.).