A species of dolphin is born naturally blind in the Indus and Ganges rivers in South Asia. These dolphins have a highly sophisticated sonar system and swim on only one side of their body.

Dentists have recommended that a toothbrush be kept at least 6 feet (2 m) away from a toilet to avoid airborne particles resulting from the flush.

Simplistic passwords contribute to over 80% of all computer password break-ins.

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