Klepetan and Malena (05:52)
A stork makes his yearly migration of 30,000 km to breed. Although permanently grounded, his mate raises a full nest of chicks each year.
Parasitic Rainforest Plant (05:11)
Caterpillars and ants help each other when feeding on a parasitic plant. Butterfly wings contain the same design as the primary food source.
Club-winged Manakin (05:34)
Males stridulate to attract a mate. Slow-motion filming captures how this bird uses his wings to create a high-pitched tone.
Baby Olms (04:25)
The first hatchlings are filmed in Postojna Cave Park, Slovenia. These aquatic salamanders were previously thought to be descended from dragons.
Medical Detection Dogs (05:36)
Claire's pet is believed to have smelled cancer on her breath. Dogs have an incredible sense of smell and are being trained to improve human health.
Boiling River (07:00)
Ruzo discovered a mythical boiling river in the Amazon. Consider how heat from the earth's core travels to the crust.
Reindeer with Cardiac Arrest (05:25)
A herd of wild reindeer were killed instantly by powerful ground current. Scientists struggled to identify the cause.
Blood Rain (06:00)
Villagers in a Spanish community are alarmed when their fountain turns red. Micro-algae produce astaxanthin to protecting their cells from UV rays.
Credits: Weird Wonders of the World (Series 2): Episode 7 (00:60)
Credits: Weird Wonders of the World (Series 2): Episode 7
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