Thanks in advance. I come from a Christian school so they don’t teach evolution because they don’t believe it.
In: Biology
There are obviously several ways a species evolves but as a rudimentary idea: lets assume an island with a really strong high and low tide. Therefore big parts of the islands are
Flooded for parts of the day. There is a species of lizards. Some of them can swim (and maybe even have a bigger tail for swimming), others can’t. Due to the rising tide, the non swimming part of the population has lower chances of survival(either due to drowning or food shortages, etc). The swimmers have an advantage and will reproduce more, over time the species will only consist of the swimming variety.
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