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.

Back in 1953, it took 27 hours to make one Marshmallow Peep. Now it takes only six minutes.

A lion's roar can be heard from five miles away.

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