Monday, July 03, 2006

Ants!

From the Canadian Broadcasting Corporation (CBC):
Ants walk using internal distance clock: Study
Last Updated Fri, 30 Jun 2006 15:43:19 EDT
CBC News

Desert ants have an internal pedometer that measures how far they've marched, researchers have found.

Foraging Sahara Desert ants wander when searching for food, but take a relatively straight path when heading back to their nests.

To do so, the ants need to judge directions and distances when travelling over flat, sandy terrain without landmarks. Scent trails used by other species won't work because the odours fade in the hot desert.

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Anthony H. Risser | |

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