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Future in Y: The Last Man
Topic Started: Dec 3 2010, 12:19 AM (2,132 Views)
TheCoon
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http://en.wikipedia.org/wiki/Y:_The_Last_Man

This series is quite intriguing. It's about a future in which, somehow, all male mammals on earth died, and as consecuence, every mammal went down to extinction in a blink of an eye. The only survivors are the protagonist and his pet monkey.

What kind of future ecology and life forms could arise in this situation?

Not only mammals would fall, but also other mammal-dependant species, such as snakes that feed on small mammals, and vultures that depend on big predator's leftovers. I have to admit this is a very interesting alternative for the every-increasing number of Future Projects with bats, rodents and lagomorphs as future rulers of the world. What do you think?
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irbaboon
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How well would owls fare in this future world? Don't they mostly feed on small mammals?
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Kamidio
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They also eat lizards.
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TheCoon
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Mostly owls, large raptor birds, vultures, snakes and even some tarantulas woudl go to hell alongside mammals.
That would be quite an interesting future, even if the balance of the ecosystems would take a lot of time to recover. Ideas of future animals in this world?

For me, it's the start of the rise of avians. This would give (with time) a place to a whole new Class of animals that would take those mammal niches.
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Kamidio
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The snail eating kite wouldn't die out. Nor would snake eating raptors and/or picivosous raptors.
Edited by Kamidio, Dec 3 2010, 06:42 PM.
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irbaboon
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I would think ostriches, Emus and their kin would experience a great diversification.
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Ook
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if they survive,ostrich is already extinct in many countryes of its present range
rheas are not in better situation

i guess emu will be one of last ratites
Edited by Ook, Dec 4 2010, 05:32 AM.
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irbaboon
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Slivovica
Dec 4 2010, 05:31 AM
if they survive,ostrich is already extinct in many countryes of its present range
rheas are not in better situation

i guess emu will be one of last ratites
Humans are dying out too in this scenario, I think that would give them plenty of time to recover and the lack of predation and competition from any other mammals would benefit them greatly
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colddigger
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There would be a pretty strong selection for a different method of determining sex. On occasion the trigger genes that are normally found on the Y chromosome are swapped onto the X and so we get a male with two Xs.

Unfortunately those people tend to be sterile, and since the Y chromosome not only hold the trigger for becoming male but also certain genes that support testicular growth those people also are very lacking in the gonads department.
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TheCoon
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Also, don't forget that in this scenario, humanity has to make clones of itself to survive. The cloning process will eliminate the evolution factor, thus making the Homo sapiens species unchangeable for millions of years.
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colddigger
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They could always mix the chromosome between cells and/or induce meiosis artificially...
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TheCoon
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But they wouldn't get any benefit from that. At least not one that I can recall.
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colddigger
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They would get sex cells.
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lamna
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I don't think many tarantulas would die out, some can eat small mammals, but their main food is still insects, unless there is a species I'm unaware of.

Adaptable raptors like kestrels would be able to survive on frogs, worms and small birds, but many would suffer.
Bald eagles and other sea eagles would probably do quite well out of it, dead fish will still be plentiful, and golden eagles which normally out compete them would suffer.

New Zealand would almost be reset to how it was before humans arrived, there are still lots of introduced birds and insects that would cause trouble, but it would probably be safe to bring Kakapos to the mainland.
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TheCoon
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I was also thiniking:

If the extinction of mammals began because of some sort of infectious disease, would the disease also affect marine mammals?
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