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For questions regarding the viability of a life-form design. These questions should focus on biologically plausible creatures.

54 votes

How can a fish that explodes by itself prosper enough to reproduce on a grand enough scale t...

When the female fish blows up, the explosion sprays all of its fertilised eggs and some stick to the animal that triggered the explosion, or the thorn apart pieces of flesh, and gain their nutrition f …
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3 votes

Side effects of having bulletproof skin?

If their skin is grey, it probably doesn't have melanin, meaning they might be more strongly affected by ultraviolet rays and more at risk for skin cancer, unless their skin has a substance which ful …
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0 votes

Is it good or bad for humans and for the development of human society to hide their facial e...

From an evolutionary point of view, humans specifically developed facial muscles to express their emotions, in order to further understanding between fellow humans and build societies because working …
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18 votes

Shapes for an infinite animal?

Could have a fractal outline and that would be an infinite surface within a finite volume. A Mandelbrot fractal looks as if it had a head (and a posterior as well) so that may serve your purpose. http …
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5 votes

How could polycephaly evolve as a byproduct of natural selection?

This is not applicable for a wide range of two-headed creatures because I can't imagine this as an ultimate survivor strategy but there was mention of tool use in finches in another answer, so technic …
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8 votes

What would the most peculiar characteristics of a "time fly" be?

Maybe they are called time flies because ancient cultures used them to measure time. Maybe every time fly has a regular schedule it follows every day. When it is asleep, (or stays in one place) the …
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1 vote

Viability of Fixed-Wing Biological Flying Creatures?

Maybe their wings would not evolve from limbs. They might evolve from back plates like those of the Stegosaurus, and later grow very large due to sexual selection but also lighter to support their siz …
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3 votes

Alternate uses for dragon wings?

What is the use of a chicken's wings? (Apart from being fried in a spicy batter.) It's just there because evolution hasn't done away with it yet. But give it a few millennia and it might (once humans …
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3 votes

Aliens with freezing powers

Would it be helpful if the freezing power weren't constant but on-demand? It could have an organ, which basically works like a freezer: stores super-dense gas and releases it quickly into an appendage …
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4 votes

What qualities could a hominid evolve to make it a better farmer?

If these other hominid species were selectively bred by humans then it is likely they would have been bred for low mental capabilities. They might also have been selected (by humans) for a trait simil …
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1 vote

Preventing a Suggestibility Drug from taking over the Story?

IMO the easiest way to limit the drug to one planet is that the users are members of the one species that evolved on that planet and the other planets' inhabitants don't have the right neurochemistry …
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