Animals become extinct in many ways. One way is that that animals food was being eaten and there wouldn't be enough of that food left for it. Another, is that that animal is being eaten by other animals and it is being wiped off the face of the earth.
You obviously hadn't noticed that living things have not become extinct. There are still plenty of them about.
things
No one can predict such things
Northern Exposure - 1990 Things Become Extinct - 3.13 was released on: USA: 20 January 1992
we would all become extinct
No
Living things, that do not reproduce, would eventually die out and become extinct.
Living things, that do not reproduce, would eventually die out and become extinct.
Northern Exposure - 1990 Things Become Extinct 3-13 is rated/received certificates of: Australia:PG (video rating) Canada:14A (video rating)
mass extinction
They are not extinct.
They are not extinct.