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Deep Look
Take Two Leeches and Call Me in the Morning
Season 5
Episode 6
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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5:42
Covered in a shiny bubble, the alkali fly scuba dives in California's Mono Lake.
4:58
A “bee fly” is a freeloader that takes advantage of a bindweed turret bee’s hard work.
4:05
The scaled wormsnail cements its shell to a rock and snags its meals using mucus!
4:04
Step right up to see tiny springtails spin through the air with the greatest of ease!
3:44
Geckos navigate nearly any surface with an electron dance at the atomic scale.
3:22
Bird’s nest fungi look just like a tiny bird's nest. But those little eggs have no yolks.
3:36
How are frogs so amazing at catching bugs? It’s their supersoft tongue and special spit.
4:00
Mussels create byssal threads to attach themselves to rocks and each other.
4:10
Earthworms cozy up with a mate inside tubes of slime to make cocoons full of baby worms.
3:52
What keeps the boneless, jawless hagfish thriving after more than 300 million years? SLIME
5:04
Researchers use invisible lasers, ghastly wasps and more trickery to protect orange groves