General

[quote=Gee187]Guys, zombies OBVIOUSLY![/quote]

That picture scares me ]; (zombie guy)

Guys, zombies OBVIOUSLY!

you know how the insects were as large as we were all those years back? you know how we humans have been evolving, slowly watching the previous inhabitants devolving around us? what if we started to devolve just like they did and become no taller than 3 ft. tall and watch them to grow up to 10ft.+ in height and/or wing/leg span? that would be creepy o.o

Super-cancer. It will rub us out faster than a virgin in a women's college dormitory.

@Genostigma: gay people can still have sex with the opposite gender lol

Everyone will turn gay leading to no-reproduction.

Even with overpopulation, not every single human being on earth will die. I say a world-wide nuclear war, but I bet there'll still be a couple of people that just survive. Humans have a way of surviving due to our ingenuity. The only way that I believe that humans will become extinct would be the end of the world, and no, I don't mean 2012, I mean billions of years from now when the sun explodes, comet crashing into earth, etc. Either that, or in the distant future, some idiot releases some sort of virus on the whole earth, but I bet some of us will survive even then. Anyways, anybody here ever read the Maze Runner series? It relates to this topic, and it's a pretty good series if anyone wants to read it.

Mandatory sterilizations? Population control to the extreme for paranoia of overpopulation and then a single, simple virus will wipe out the less genetically diversified human race?
Anyway, if the universe is billions of years old, and the human race is thousands of years old, in the cosmic timeline, we are but a mere blink. Nothing here will have mattered, nothing of our civilization will be remembered. The sun will explode, the planets knocked out of orbit, and the universe will continue as if nothing has happened.
Chew on that for a while. You will worry a lot less about trivial things.

Every homeless people will get high on LSD and go crazy enough to eat 75% of our faces off, then die. 1 man down already in Miami.

The human race is already well into the process of committing suicide.
We'll no doubt get there long before the Sun or an asteroid can do anything for us.

We'll go extinct now that there are people eating other people's faces off! JOKES.
We're overpopulating by more than we can actually replenish our natural resources.
Also with there being no laws in the majority of countries limiting the amount of children,
&The lack of knowledge or way of acquiring contraceptives, we're going to keep having children,
&The fact that we're not managing our environment in a sustainable way,
&With the amount of greenhouse gases that we are putting out,
I feel like we could potentially fall as the greater species due to there being less &less resources to use.
Now if we can develop a method to potentially SAVE what we have &hopefully refurnish it,
We could possibly be able to survive >:'o

[quote=uoid]dinosaurs come back and take their land over[/quote]

rise of the planet of the dinosaurs

too many unplanned babies. have sexy when you're married kids.

Uhm, a meteor? Since, it can sterilize the earth while killing things.

overpopulation.
wars.
things that we start on our own. we'll end ourselves..

I always wanted to obliterate humanity. My children have become monsters

Hah! I don't care, if anything I'd laugh at the people who are unfortunate to be existing while their own sun is pulling them towards it.

i like to believe that we will kill ourselves. Perhaps with a big war, or nukes.

North Korea discovers nuclear technology
Proceeds to completely destroy South Korea
Rest of world gets pissed
NK refuses to negotiate, and retaliates by bombing the UN
UN countries declare war on NK
US forced to use nuclear arms themselves
Ice age because of too many nukes
Human race dies

Well lets face it..... Humans are going to evolve in the future. there will be humans still in the future but different species of humans o.o

we dont know how exactly human population will extinct and this is what i only know....

Let's just say it was because of one of the choices. But, which one?