Fish are so abundant in the ocean (even given how humans overfish, and them often being prey), I kind of wonder
1. Why don’t marine animals converge to a more fish like form? (Aside from say land mammals like whales and dolphines who decided they want to go to the sea)
2. What benefits are there in having a fish-like form in the ocean? It must be evolutionarily advantageous for some reason.
3. Did the first non microscopic multicellular beings have fish-form?
In: Biology
Quite literally every fish species evolved into “fish form”. That’s how many animals found it useful.
Advantage: move really, really well in water
Disadvantage: move really bad anywhere else, no limbs to manipulate objects
Not everything takes that form because there are other viable forms that offer different advantages. Evolution isn’t about getting to a “best” answer, its about getting to something that works well enough to procreate.
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