Snails help to save lives

The common garden snail lays about 30 eggs in a year. Each egg is the size of a pinhead and each one is a potential lifesaver.

The snail’s egg is cheap. It is readily available and is a stable source of a chemical used to determine blood groups. Normally, this chemical is extracted from human blood. It takes the blood from five donors to provide as much as is contained in a single snail’s egg. The contents of the egg are extracted and dissolved in a saline solution

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