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Resource library : What is evolution and how does it work?


Evolution at different scales: Micro to macro
Microevolution and macroevolution encompass change at very different scales, but both work through the same basic processes.

Microevolution: The basics
Microevolution is going on around us all the time. Find out how small-scale evolutionary change occurs.
This article is located within Evolution 101.

Evo in the news: Warming to evolution
Global warming increasingly affects many aspects of our environment, from the sea level to tropical storm strength. But that's far from the full story. This news brief from July 2006 describes how global warming has already begun to affect the evolution of several species on Earth.

Interactive investigation: The arthropod story
This interactive investigation delves into the amazing world of the arthropods and examines their success and their evolutionary constraints.

Evo in the news: Toxic river means rapid evolution for one fish species
This news brief from March 2011 examines the genetic basis for the evolution of resistance to PCBs in the Hudson River tomcod. Though this is great for the tomcod, what might it mean for other organisms in the ecosystem?

Evo in the news: Bed bugs bite back thanks to evolution
This news brief of September 2010 examines the resurgence of bed bugs throughout the country, and the real bad news is that those bed bugs have evolved resistance to the chemicals most commonly used for eradication.

Las chinches de cama pican de nuevo gracias a la evolución
Las chinches de cama puede parecer un viejo problema pasado de moda, sin embargo ahora están de vuelta — y con venganza. Hace cincuenta años, estas plagas chupadoras de sangre estaban casi erradicadas en los Estados Unidos gracias, en parte, al uso de pesticidas como el DDT. Hoy, se arrastran entre las sabanas — y atormentan a los desgraciados soñadores — en todo el paĆ­s...