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For questions about the long-term change of a specific species, type of creature, or trait, usually through the process of natural selection and reproduction. Ideal questions focus on traits, not entire creatures. Consider also [creature-design].

0 votes
1 answer
435 views

Scientific Accuracy - Advantages and Complications of Tetrachromacy Underwater

However, after doing my research on the evolution of the eye, I found out that colour vision may be a disadvantage underwater. …
Andsaur's user avatar
  • 159
3 votes
4 answers
819 views

Scientific Accuracy - How can we make an alien brain more 'efficient' than a human's?

I am designing an semi-aquatic sapient species known as the Tetrapi. They have an appearance similar to that octopi, only with 4 tentacles comprised of 3 opposable digits. Unlike octopi, they are air- …
Andsaur's user avatar
  • 159
4 votes
1 answer
325 views

Which protein is more efficient at oxygen extraction for an AIR BREATHING aquatic species? H...

Another question concerning the Tetrapi, I would like to know if having haemocyanin-based blood (copper-based blue blood) would be an advantage over having haemoglobin-based blood (iron-based red bloo …
Andsaur's user avatar
  • 159