If you are referring to irrational animals ,including microrganisms, I am sure you are, if you are considering a sudden extinction of all animals, mankind would be extinct in the world in a short period of time as well, for our existence are closely attached to irrational animals' existence. (domestic and wild animals.). Extinction of all irrational animals implies undoubtedly on the mankind extinction, consequently ending up all sort of living organism all over the world.
If you are referring to a gradual extinction of all animals, human life could be maintained by replacing animals' proteins used on our daily nutrition for other source of proteins, and by adaptating work formerly done by them for mechanical work, but this would worse our standard of living on a VERY high degree. (pets, the beauty of wild animals, the beauty of domestic animals.) Fortunately, on both cases, we are not running towards this terrible event.
No more milk or beef would be produced for human consumption. There would be a reason why every cow in the world got sick and died and that reason would probably have severe harm to the human population.
We would be dead. You're aware we're animals, too?
we would die, too
Nothing would happen. Humans ARE animals.
The fish and their pray would have nothing to feed on and die themselves.
The animals will died and move to to areas
the animals would be floating
they died
Humans are already animals, being part of the animal kingdom. Therefore, what would happen is that we would carry on as usual.
they would die!
most animals would be constantly lost at night.
the food chain would be totally messed up other animals would be eating different animals making predation worse and causing the popluation to decrease. hope that helps Astred
I think that if all insects died, since they are at the bottom of the food chain all other animals that feed from them would start diyng and eventually would get to us human too.
bhenkaland