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Results tagged with evolution
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user 71841
For questions about the long-term change of a specific species, type of creature, or trait, usually through the process of natural selection and reproduction. Ideal questions focus on traits, not entire creatures. Consider also [creature-design].
1
vote
Hair as an olfactory organ: Feasible or dumb?
The primary issue I can see is that insect antennae aren't a body covering in the same way that mammalian hair, reptile/fish scales, or bird feathers are. They're a distinct pair of legs that have bee …
- 14.2k
6
votes
Must a sapient species be a true omnivore to exist?
Nope, many species show otherwise
There are a number of species out there which are probably sapient or close to it, and which exhibit a wide range of dietary habits.
Carnivorous - Odontocete cetace …
- 14.2k
8
votes
Could we evolve to become mermaids?
There's nothing for evolution to act upon because there is no variation within the population to select upon. …
- 14.2k
2
votes
Evolution: Tilting the scales of the arms race between cobras and mongooses
This already happened in nature. Opossums (specifically, members of the subfamily Didelphinae like the Virginia opossum, Didelphis virginina) also prey on venomous snakes like mongooses and have a sim …
- 14.2k
2
votes
Non-predatory evolution
Elephants and parrots are basically sapient herbivores. I have no idea where elephants get the protein to develop such big brains but parrots get their protein from nuts, seeds, and certain fruits in …
- 14.2k
3
votes
Accepted
Humanity is doomed because of succubi
You need to read Parasite Rex. The entire book is about parasites (especially sexual ones) and how for many species mating is a difficult cost-benefit question of whether it is worth mating versus get …
- 14.2k
1
vote
What species will benefit most from humanity's having been here?
In terms of mankind's presence passively helping another species achieve sapience, there probably wouldn't be any species that fit your criteria. Humans haven't been creating strong selection pressure …
- 14.2k
1
vote
Is it possible for an animal to have both air-spaces and lungs?
There's really no point. Lungs essentially perform the same role as a swim bladder (indeed, they're the same organ in fishes), and lungs originally evolved as a buoyancy organ and only secondarily bec …
- 14.2k
1
vote
How can children dying increase fitness?
case in marsupials, where the "crawl to the pouch" results in 90% of new genes being weeded out of the population before they can influence survival in the adult animal, which has resulted in marsupial evolution …
- 14.2k
7
votes
How can tigers survive indefinitely in a post-deforestation world?
Not sure how feasable it is with how humans work
So, I tried really, really hard to think of a way to make this work. One thing is that a highly confined, "urban jungle" environment could create enoug …
- 14.2k
3
votes
How many wings would a vertebrate-like hexapod have?
Nobody knows
Theoretically, either two or four pairs of wings are possible. On Earth, no animal has ever evolved where all of the limbs are solely devoted to flight and are incapable of terrestrial l …
- 14.2k
1
vote
What adaptations would a water-dwelling species need to survive by primarily hunting pre-ind...
Your species won't be able to function as it is currently written. Humans in general are a terrible prey choice for a predator that is specialized on hunting a single type of prey. Humans are slow-bre …
- 14.2k
8
votes
Alternative humanoids to occupy late Eocene Antarctica
An early platyrrhine primate like Perupithecus
The oldest known platyrrhines date to 35-38 Ma. They are thought to have gotten to South America some time before that, potentially at the same time as t …
- 14.2k
4
votes
Accepted
adaptations for land-based octopuses
A method of controling the osmolarity of their bodies
One of the big challenges in moving on land is dealing with osmotic balance (how salty the internal environment of the cells in the body is). Mos …
- 14.2k
6
votes
Could a prosimian conveniently evolve sapience?
Yes, and some groups show particular potential in that direction
There are a group of lemurs called the Archaeolemuridae, the last members of which which died out approximately 1280 C.E. Compared to …
- 14.2k