Dangerous Hailstones (04:53)
An unusual temperature shift strands beach-goers in Siberia. Hail begins as water droplets, usually freezing and falling to earth in pea-sized droplets.
Arctic Ground Squirrel (05:52)
Animals survive freezing temperatures through hibernation. Blood remains in its liquid state through supercooling.
Naked Mole Rat Longevity (03:20)
Scientists study the extended lifespans of cancer-resistant rodents. Studying animal evolution benefits human health.
Encoding Music on DNA (05:19)
Sriram Kosuri has converted OkGo's album to a DNA sequence. Consider how data is translated and stored.
Auto-Brewery Syndrome (07:01)
Separate patients appeared drunk without drinking. This rare condition converts carbohydrates to alcohol during digestion.
Orca Hunting Strategy (04:41)
A Great white shark is killed by an orca whale through tonic immobility. Consider hunting behavior for alpha dolphins and fish.
Limpet Teeth (03:29)
The strongest biological material on earth is created by limpets. A radula contains one-thousand teeth designed to harvest algae.
Displaced African Penguins (03:20)
Searching for burrows to breed and nest in, penguins are disturbing human habitats in southern Africa. Consider how overpopulation disrupts an ecosystem.
Blue Volcano (05:44)
Blue lava at Kawah Ijen is caused by high concentrations of sulfur. When burned, chemical compounds produce various colors.
Glowing Beetle Larvae (04:36)
Newly discovered Amazonian beetle larvae lure prey with light. Making a new discovery is thrilling for scientists.
Credits: Weird Wonders of the World (Series 2): Episode 3 (00:37)
Credits: Weird Wonders of the World (Series 2): Episode 3
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