When I was a child, our family vacationed in northern Minnesota at Leech Lake. Not surprisingly, leeches were a part of normal daily life - but they were nothing like these Asian buffalo leeches.
"They're amazing, curious creatures that grow like crazy and make wonderful pets," leech keeper Ariane Khomjani told ScienceAlert. He explained how individual leeches have their own unique personalities, with some being more adventurous and others more shy.
More information at the link, via Neatorama.