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Science and Nature

Take Two Leeches and Call Me in the Morning

See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

Take Two Leeches and Call Me in the Morning

Season 5 Episode 6 | 3m 11s | CC

The same blood-sucking leeches feared by hikers and swimmers are making a comeback... in hospitals. Once used for questionable treatments, leeches now help doctors complete complex surgeries to reattach severed body parts.

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