Posts by Joe
In a story I'm working on, there are some creatures that eat hair, wool, fur, and anything similar. They're not mites or insects, but are (very roughly) the size of humans. Is there any realistic...
Let's say we're composing a message intended for radio transmission to intelligent alien life. We'd like to talk about sizes and distances, so we'll need a unit of length. We're already planning ...
Let's say a 1600s civilization is around, making lots of iron objects: guns, swords, farm implements, etc. One day those people vanish. What conditions would allow their iron implements to be usa...
Could a creature reasonably have both armor (in the sense of armadillos or pangolins) and be able to change color over the short term (less than a day)? I'm afraid I don't know enough about biolog...
In a question about mermaids, it was proposed that they might have evolved to look like humans to lure them in and prey on them. How could a creature survive on a diet of nothing but lured-in huma...
I've drawn up a set of landmasses for my story, and now there's a tsunami headed for them. I know where the tsunami is coming from, and I could decide how big it is, or any other characteristics o...
Let's say we came across a new species of moderately intelligent birds. Like Alex the parrot, these birds are able to learn a few words and simple concepts. But once we teach these birds the word...
