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July
2006 Issue- News Scan A Regulation on Regulations
- Sustainable Developments Ecology and Political Upheaval
- Antigravity For the Birds
- Buy the Digital Edition
We humans
customarily
assume that our visual system sits atop a pinnacle of evolutionary success. It enables us to appreciate space in three dimensions, to detect objects from a distance and to move about safely. We are exquisitely able to recognize other individuals and to read their emotions from mere glimpses of their faces. In fact, we are such visual animals that we have difficulty imagining the sensory worlds of creatures whose capacities extend to other realms--a night-hunting bat, for example, that finds small insects by listening to the echoes of its own high-pitched call.
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