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It's an interesting scenario. The major problem is that ring systems tend to be quite low-mass in comparison to their parent bodies. For example, measurements by Cassini indicate that in the case o...
It's unlikely, on the whole, for a ring system to maintain a high eccentricity on significant timescales. Dissipative collisions tend to circularize the orbits of individual particles, even if the ...
Counter-Earth is too massive to stay in any of Earth's L points. As Theraot points out only L4 and L5 are stable for objects much smaller than the main body. Another Earth would be too massive, and...
They can "swim" If they're "dragging" in atmo, and they have some power source (solar would be fairly trivial), perhaps they can have some sort of propulsion system that leverages that for station...
They could have syrinxes in addition to larynges. This would permit them a much greater vocal range, and hence disproportionately low voices for their sizes. (Their voices would still be higher tha...
(Regardless of what you believe in this Earth...) You already answered (part of) your question; they'll believe in Intelligent Design¹. Genuine science does not a priori reject extraordinary expl...
The simplest way to achieve this is to have the Moon be on a perfectly circular orbit that lasts twelve months and lies in Earth's orbital plane; this would mean that at each new moon, we would get...
Mutism is the inability to speak, not the inability to make any sounds with the mouth. Your character could become mute from a variety of causes. Willk suggests a laryngectomy, which would certai...
The spring emerges from a local cave which has been filled / caved in by a past civilisation, since the water is secretly heated by engineered means. Any society that can create engineerin...
Of the existing answers I like this one by Aos Sidhe best, but I would probably do it slightly differently. Make your animal susceptible to a poison/virus which causes infertility. The poison sh...
What can a star be made of? A star's composition is limited by the elements that exist in significant quantities in the universe. These include primordial elements - hydrogen, helium and lithium -...
No. You can deduce certain things about a person from their physical appearance, hair colour, skin colour, eye colour - will all give you clues to certain genetic markers that they will carry. Yo...
Muscle plasticity is not the same thing as regeneration. Muscle plasticity is defined as the ability of a given muscle to alter its structural and functional properties in accordance with the...
I give you two choices depending on use: Mortician's wax: Mortician's wax is a cosmetic wax used by morticians to cover injuries on dead bodies. The wax imitates the properties of human skin...
Pig skin Pig skin is already used on humans as part of skin grafting. It is generally only used as a temporary graft until a more permanent one is ready. From a 1964 article, as the process was ...
Yup! This is possible, and a number of small bodies in the Solar System have rings: Haumea, a dwarf planet in the outer Solar System, was recently discovered to have rings, which lie inside its R...
Since you're in charge, the best way to go might just be squishy. Cephalopods.: nervous system of cephalopods is the most complex of the invertebrates Best to work with a species that has hu...
A tale of envy. Hippos. The Ishisonga remembers swimming as a cub: it loved swimming, it would dive beneath the water and feed on the lush and delicious water-weed, reveling in the cool splashy g...
Equations of state The "ocean" should be described by an equation of state that relates thermodynamic variables (e.g. density $\rho$, temperature $T$, pressure $p$, etc.) to one another. Different...
There are two good ways to have animals become larger. The first, is cooler temperatures. Animals tend to become bulkier with shorter limbs in order to conserve body heat, see: Bergmann & Alle...
Models of planetary structure indicate that ocean planets should reach peak size at a few hundred to a thousand Earth masses, reaching maximum radii of perhaps 4-5 Earth radii. Add in some iron and...
They do on Earth, so why not. Scots pine (Pinus sylvestris) [...] trees has evolved to make best use of the environment in which each species occurs. Scots pine (Pinus sylvestris) bark offer...
Sure, it's called convergent evolution. analogous traits arise when different species live in similar ways and/or a similar environment, and so face the same environmental factors Natural...
Global Usability However advanced your average tech level, you probably still have a few people that can't afford "” or for whatever reason, don't use "” the necessary equipment to deal in digital...
I think SealBoi hit the right note, in that the question you should be asking is "how do my critters nurse their young?". If they always lay down to let their babies suckle, there is no reason for ...
