A Catalyst article about encountering the fossils of the bones or shells of individual animals embedded in sedimentary rocks. This article looks at some extraordinary fossils of plants and animals preserved together in an ecosystem - it is even possible to see the cells of which they were made. The article also...

These resources from the Wellcome Trust look at how populations grow, change and move, and why understanding them is so important. The resources use real research to illustrate many aspects of the study of populations, including:

• ecology
• epidemiology
• ...

This Catalyst article looks at peatlands which usually conjures up images of bleak, boggy hillsides across Northern Europe, Russia and the USA. But peatlands are also found in the tropics. These currently act as a significant store of carbon, yet these valuable ecosystems are under threat; their disappearance could...

This edition of Computer Science for Fun is entitled ‘The Earth Issue’, and features computer science applications that are environmentally friendly or that have helped scientists researching our planet.

The articles include:

• The power efficiency of the human brain vs modern computers

•...