This is going purely on personal experience - but, yes. I’m an acrobat and have done acrobatics in a variety of ridiculous items of clothing (dresses, onesies, you name it). However, having the ...

If you want to be quiet about it, gold is pretty good - no-one will be massively surprised if you turn up wanting to sell gold, whereas ruthenium would be another matter... However, if you're planning ...

I’m not sure about potential advantages/disadvantages to not having wrists, but as it’s definitely possible to write, draw, and paint without the use of one’s hands, having fixed wrists wouldn’t ...

How exactly are you defining witchcraft? It’s a tricky one, but aligning witchcraft with midwifery might get you somewhere with “only women have the ability to perform it”. I’ll have to come back to ...

Recessive alleles only show if two copies of the recessive allele are inherited - you couldn't get blue eyes unless both parents had the recessive allele for blue eyes. These pages have some ...

It depends on where exactly your underwater society lives (i.e. at what depth). If they live in caves on the walls of a chasm, for example, there isn't really any flat ground that wheels would be ...

If your demigod foetuses come to term faster, requiring more resources in order to grow at a quicker pace, that may (in some way) be helpful for the mother. Rather than having to endure nine months of ...

Good for the environment If they're living in harmony with their environment (including but not limited to their central tree), then it can actually be healthy for some trees to be cut down. As ...

Willing to have this idea shot down, but: within the parameters of the world, magnetic-based navigation isn't a thing, because of all the magnetic ore deposits, and she flies a dragon, which isn't ...

Depending on your setting, capes or ponchos could work quite well as warm, potentially water-resistant, items of clothing that would allow freedom of movement for wings. However, to stay nice and ...

I feel like the best way to catch people/shapeshifters out are unconscious habits, and ways of feeling/expressing yourself. Little tics of the face, twitches of the hand, and fidgety motions may be ...

I realise some of those might be a bit more specific to one side or the other (good vs evil), but do any of those work? Celestial Heavenly Empyrean Angelic Chthonic (great word) Devilish Demonic ...

I recognise that this is based upon human rather than reptilian tongues, so may not be what you’re looking for, but perhaps your dragons could use their tongues as funnels to direct their flame. Not ...

There's a (human) condition called haemochromatosis, where there's an excess of iron in the blood. Treatments include: 1. low-iron diets; 2. phlebotomy (medical bloodletting); 3. in rare cases ...

If planetary colonisation, space travel, and terraforming are all good enough, this may not be enough of a benefit. However, natural fibres can biodegrade and be healthier for the environment - if ...

Progeria could potentially work for you, although I realise the main downfall with this is that it has some outward/visible manifestations (stunted growth, alopecia, and a distinctive head shape). ...

The main issue for them will be water. According to this website, you can live for weeks, even months, without food (as those on hunger strikes do), as long as you have access to water. The effects of ...

Depending on time of day/location/etc., breathing fire could attract unwanted attention to the dragons. A couple of scrawny knights could be more hassle to kill than they’re worth, so the dragons ...

While your virus might have some nasty symptoms, it could also have some personal benefits (such as @atayenel and @LSerni have said above), but also things like: - immunity to other illnesses (kind ...

PSYCHOLOGICAL Would the 10-year-old be expected to go through school again? If you had enough childhood experience/expectations forced upon you, it may begin to overwrite some of the memories (if you'...

Depending on exactly when and where you’re picturing your medieval-style world, tunics were pretty popular. You could make sure your character just has a woollen tunic or robe that’s a little longer ...

Maybe not 100% what you’re looking for, but you could use the bones of aquatic animals to carve into (I’m thinking a runic alphabet like Ogham, which was designed to be notched into materials like ...

Two thoughts: Add apostrophe’s everywhere that is grammatically incorrect. These change’s aren’t going to cause major monetary loss, but any grammar nerd’s out there may well cause casualtie’s - ...

Less of a biological than a social factor, but perhaps Orcs get tattooed with green ink - and get more tattoos the more successful they are as warriors. Similar kind of idea to ancient Picts painting ...

While certain bare facts may be useful (having textbook facts to hand might make exams easier, if your society chooses to examine people), I think methodologies might be more helpful. That could be ...

To be able to fly, the wyverns would need more than just a large wingspan. For example, a human would need a wingspan of about 6.5m to be able to fly, but humans do not have enough body strength to be ...

Neal Stephenson's book "Seveneves" might have some interesting thoughts on this - basically it's about the consequences of an Earth-threatening event, where humanity has to move into space to survive. ...

Your safest bet would probably be about the lowest class citizen - wear natural fibres in some shade of brown, and you’ll not get too many odd looks. However, what classes as ‘natural fibres’ will ...

A few thoughts: What if your hero’s powers manifested in non-life-or-death scenarios? Maybe he’s got to do some public speaking in college, and he gets super nervous being the centre of attention, ...

Depending on what you mean by ‘disastrous’, incurable zombies could be the less disastrous option. The outbreak itself would be socially/economically/psychologically disastrous, in that it would ...