What do you think is the biggest threat to the human species?

Humans

Because we the collective group don't want to recognize that there are limits to everything. Because we as a collective group do not want to take responsibility for anything.

The fungus is growing and will soon destroy the orange we call earth that is our home.

The biggest threat? Ha, there are so many threats, how can I pinpoint just one? Just as a broad concept, perhaps the most urgent and widespread threat is our own imperfection. Of course, there's no way we can ever reach perfection, but I believe we could certainly be closer. Imagine: if we were perfect, there would be no war, no poverty, no debt crisis, etc. But then, that raises the question, "Just what is "perfection", as it relates to human behavior?" A question for the Philosophy section, I think. Anyway, that's my answer, but the list of high threats goes on and on, so that's why it's so unspecified.

The biggest threat are the ones that we face everyday. We destroy ourselves by consuming diets high in fat, and live sedentary lifestyles. This is especially predominant in Americans.

Giant space Chickens hell bent on the extermination of the human race

Global warming and other humans - the oil wars have already started

Liberal progressive communists.

Because they teach their children to depend on government instead of personal responsibility and self reliance.

Also,they believe in a collective salvation when God says you and only you are responsible for your salvation.

i think that terrorist is the biggest threat and ufos because theses things are happening through out the years that we are akive more and more

SMELTED MY SOX RECENTLY ??

Enuff to seize up ya caps lock, missus !!

& I only just changed 'em in 1967 too

LOL

Humans.

Because some kill, hurt, steal, are criminals, pollute the air.

Stupidity, laziness and propaganda