Columbian drug-lord Pablo Escobar kept four Hippos in his estate before his death in 1993. Deemed too much hassle to move by authorities, his Hippos were left there and have since bred and escaped becoming an invasive species of Columbia.

Over 100,000 birds and sea animals are killed every year due to plastic garbage.

The stage were the television sitcom "Friends" is shot on is said to be haunted.

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