Extinction

The History of Life on Earth

Fossils of organisms that were different from anything alive today had been documented as early as the 17^th century, but it was not until the early 19^th century that scientists began to recognize that the successive layers of fossil bearing rocks were like successive pages in the histor...

What do dinosaurs, Tasmanian Tigers and Hoopoe Starlings have in common? The answer is the subject of today's lab, extinction. Extinction occurs when a species cannot survive in its environment to reproduce and cannot move to a new one. Woolly mammoths, for example, were thought to have died as a result of climate change making its habitat and t...