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When were fish made?

It's impossible to say exactly when "fish" were "made" because evolution is a gradual process, not a one-time event. Instead of a specific date, we talk about a long period of time when fish evolved from earlier, simpler organisms.

Here's a simplified timeline:

* Around 540 million years ago: The Cambrian Explosion, a period of rapid diversification of life on Earth. The first fish-like creatures, lacking jaws and with bony armor, appear.

* Around 450 million years ago: Jawed fish emerge, with the first sharks and bony fishes.

* Around 400 million years ago: Lobe-finned fishes, the ancestors of amphibians and land vertebrates, appear.

So, the process of fish evolving from earlier forms stretched over hundreds of millions of years. It's important to understand that this is a simplified picture, and there's much more we are still learning about the evolutionary history of fish.

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Fishery