The Mongolian Death Worm
https://en.wikipedia.org/wiki/Mongolian_death_worm
https://www.livescience.com/46450-mongolian-death-worm.html
The Big Cats of Britain
https://en.wikipedia.org/wiki/British_big_cats
https://theconversation.com/big-cats-in-britain-urban-myth-or-scientific-fact-86656

Megalania Prisca
https://en.wikipedia.org/wiki/Megalania
http://mysteriousuniverse.org/2015/07/megalania-a-monster-still-among-us/
Kongamato
https://en.wikipedia.org/wiki/Kongamato
http://www.genesispark.com/exhibits/evidence/cryptozoological/pterosaurs/kongamato/

Tatzelwurm
http://oddrandomthoughts.com/look-out-for-the-tatzelwurm-worm-with-claws/
https://en.wikipedia.org/wiki/Tatzelwurm
Mapinguari
https://en.wikipedia.org/wiki/Mapinguari
https://www.nytimes.com/2007/07/08/world/americas/08amazon.html
Nessie
https://en.wikipedia.org/wiki/Loch_Ness_Monster
http://www.bbc.co.uk/newsbeat/article/41997932/2017-has-been-a-record-year-for-sightings-of-the-loch-ness-monster
Bigfoot
https://en.wikipedia.org/wiki/Bigfoot
https://news.nationalgeographic.com/news/2015/02/150210-bigfoot-science-animals-yellowstone-sasquatch-myths-culture/
The Kraken
https://en.wikipedia.org/wiki/Kraken
http://theconversation.com/the-real-life-origins-of-the-legendary-kraken-52058
The Yeti
https://en.wikipedia.org/wiki/Yeti
https://www.livescience.com/25072-yeti-abominable-snowman.html