There are a lot of bad things happening in the world. The present-day fish look healthy, but in the future, fish are going to get mutated due to climate change, heat, pollution, and food quality. I think fish are going to have spikes that will protect their skin from sharp objects and other stuff that was dumped in the river. Fish will get an antenna, which will help them sense danger. Fish will also camouflage. It will change its colors to blend in with their surroundings and make it hard for other animals to see them. Future fish will be able to digest plastic and other harmful materials. In case fish will have a difficult time breathing, they will have special bubbles to help with oxygen. Spiked teeth will help them chew easier.
The future fish will be perfectly adapted to moving through contaminated water.
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