Mass Extinction
Mass Extinction
Mass Extinction
A brief period of time in which large numbers of species die out and disappear is known as a mass extinction event. These events have occurred five times in Earth's history, with the most well-known being the extinction of the dinosaurs at the end of the Cretaceous period.
When large numbers of species die out over a short period of time, it is referred to as a mass extinction event. These events are typically caused by major environmental changes, such as asteroid impacts, volcanic eruptions, or rapid climate change, that disrupt ecosystems and lead to widespread species loss. Mass extinctions have occurred several times in Earth's history, the most famous being the one that wiped out the dinosaurs around 66 million years ago.
Large numbers of fossils begin to appear around 530 million years ago. It is called the Cambrian Explosion, because it occurred in the Cambrian period. The Cambrian period was the first part of the Paleozoic era.
Period
Mass Extinction
a large movement from the south atlantic to the old southwest
On the local scale tornadoes can kill large numbers of animals.
Large Armour were developed during this period. Cannons were also developed and used to release large metal. This period also saw the use of the supergun.
Whales (there are many different species) and seals (again a large numbers of different species) do not hibernate.
A mass extinction is an event in which a substantial proportion of Earth's species become extinct in a relatively short period of time, which disrupts the balance of ecosystems. There have been several mass extinctions throughout Earth's history, with the most well-known being the one that wiped out the dinosaurs about 65 million years ago. These events are often caused by major environmental changes or catastrophic events.