Linked Questions

2
votes
1answer
562 views

Plants or animals lighter than air [duplicate]

Would it be possible for plants or animals to evolutionarily develop a trait to accumulate molecular hydrogen in their body cavities (produced for instance by electrolysis of water) so as to become ...
13
votes
15answers
3k views

What ways could flight evolve besides the wings of bats, birds, and bugs? [closed]

I'm trying to come up with alternate versions of flight for a new animal species. Wikipedia has this to say: "Powered flight has evolved only four times (first in insects, then in pterosaurs, birds ...
17
votes
6answers
2k views

Evolution of giant floating mammals

Whales are majestic creatures of the sea, as they glide more gracefully through the water than their size should seemingly allow. What kind of evolutionary path would it take for whales to glide ...
7
votes
9answers
2k views

Plants that rise above the clouds, possible?

Due to a thick cloud layer(at approx the same heigh as Earth's) surrounding this planet, it's plants have evolved to stay above the clouds so that they can absorb sunlight from their nearby star. Is ...
3
votes
8answers
927 views

Could Mobile cities exist?

The concept of flying cities was discussed here and that got me thinking. In a world where every animal has to migrate to live (in the case a 9 year day), would it be realistic to build and create ...
11
votes
5answers
852 views

How could a large spherical plant heat air inside to fly?

In another question, Are flying plants possible?, a point was raised that because of the square-cube law, a large, hollow, spherical plant could fly by having the air inside be a little bit hotter ...
7
votes
3answers
2k views

Anatomically correct Zerg Overlord

Zerg Overlords are flying alien creatures that aid their broods by managing lesser members of the swarm, transporting units within their carapaces, and alerting a hive about any danger they perceive ...
11
votes
1answer
494 views

Big Green Men… from Earth

There are a couple of stories where humans gain chloroplasts. Here's a clip from one story: They are also infused with bacteriorhodopsin, allowing photosynthesis. It is now possible for a human ...
8
votes
3answers
264 views

If I made a plant that could float between clouds, what would it look like?

If I had complete control over the plant's appearance, what would be the best shape for it? I need the plant to be able to float between the clouds. It doesn't have to spend its whole life cycle ...
2
votes
4answers
377 views

Feasibility of a Synthetic Buoyancy Bladder, Used in the Air

Many fish have specialized organs called buoyancy bladders which allow them to control their buoyancy - effectively rising or sinking in the water. What if humans adapted this to use in the air? I'm ...
3
votes
4answers
314 views

What pressures could drive evolution of a floating creature?

What environmental pressures could drive evolution of a creature that has the ability to float? How it floats isn't important.
4
votes
1answer
274 views

Biological Flight With Lighter-Than-Air Gasses [duplicate]

I have a character in the expanse of my various fictitious worlds, who is a genetically modified version of a peculiar creature. This creature visually resembles something somewhere in between a squid,...