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Where to watch "Um Estranho na Selva"
10. Bird Apocalypse
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In Arkansas, thousands of blackbirds mysteriously fall to their deaths. What led these birds to flee their trees in what looks like a nighttime suicide mission?
9. Tasmanian Tiger Terror
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In Australia, mangled kangaroo corpses litter a roadside. Researchers point to an extinct breed of marsupial: the Tasmanian tiger. Could a predator come back from the dead to terrorize a town?
8. American Lake Monster
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Does Vermont's Lake Champlain have its very own Loch Ness Monster?
7. Poison Beach
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In New Zealand, a growing number of dogs are deteriorating in health. Scientists struggle to diagnose the symptoms, but a new clue is uncovered when lifeless marine animals begin to wash ashore.
6. Flying Reindeer
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A military jet hits a bird in the skies over Florida, but when the remains are analyzed, the results are astonishing: The DNA is not from a bird -- it's from a deer!
5. Kruger Killers
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A mystery predator is turning South Africa's Kruger National Park into a slaughterhouse. Animals are mysteriously dying and rangers fear the silent assassin could target the endangered black rhino next.
4. Croc Shock
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When hundreds of crocs are found dead along Australia's Victoria River, scientists are baffled. Could a toxic toad be the source of this massacre?
3. Raining Fish
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In the dry landscape of Australia's Outback, could an ancient rain dance be the reason for a downpour of fish 300 miles away from the nearest major body of water?
2. Shark Attack Beach
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A recent string of shark attacks at New Smyrna Beach in Florida has left beachgoers fearing for their lives. Join local scientists in the search for clues to what's causing the attacks.
1. Alien Roadkill
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Nat Geo joins the search for an unidentified "highway beast" in Minnesota whose image still haunts residents to this day. Could the phenomenon symbolize a message from higher beings?
