Though boasting an extremely low primary productivity, the Sahara does manage to support some life. Many of the organisms that can survive have been able to do so with adaptations for arid environments: for example, many herbaceous plants found in the Sahara are ephemerals, meaning that almost all of their life cycle—from germination to seed dispersal—occurs in the two- to three-week period after a heavy rain. Animals such as the desert snail survive by using estivation, a period of dormancy that some animals can enter when encountering extreme environmental stress. Other organisms, although adapted more for a Mediterranean or tropical climate than an arid one, have persisted in the Sahara mostly by sticking to its slightly more hospitable highlands and oases.
Sahara Article
Can plants and animals survive in the Sahara Desert?
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