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Extinction event
An extinction event (also extinction-level event, ELE) occurs when a large number of species die out in a relatively short period of time. Since life began on Earth, a number of major mass ... > more -
Ecological succession
Ecological succession, a fundamental concept in ecology, refers to more-or-less predictable and orderly changes in the composition or structure of an ecological community. Succession may be initiated ... > more -
Horseshoe crab
The horseshoe crab (Limulus polyphemus) is an arthropod that is more closely related to spiders than crabs. Horseshoe crabs possess the rare ability to regrow limbs lost. Limulus has been extensively ... > more -
Homeostasis
Homeostasis is the property of an open system, especially living organisms, to regulate its internal environment to maintain a stable, constant condition, by means of multiple dynamic equilibrium ... > more -
Timeline of environmental events
The timeline of environmental events is a historical account of events that have shaped humanity's perspective on the environment. This timeline includes some major natural events, man-made ... > more
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