They did not disappear but instead they died and it might be because event was caused by climate and geological changes that interrupted the dinosaurs' food supply.
Other than a giant meteorite, the climate could have changed of volcanic eruptions, causing all the plants to die and that means all the plant-eating dinosaurs would disapear and also without prey all the meat-eating dinosaurs would also disapear.
pollution will go up if they disapear ozone layer will go down if wetlands disapear many smoggy days
crash it into a lake
Their species was wiped out by a meteor.
as you get older it starts to disapear
They are still around today
Make it disapear
your penguin will disapear
it is simple you hold in tab and zoom in 600
There was an old cheat for that, but the zwinky team took it away. :)
Because they Glaciers have melted and made Beringia invisible.
Naw dawg, they stick around for ever.