
Rottukóngur sem fannst í Eistlandi 2005. Upphaflega voru rotturnar 16 en þegar þær fundust voru aðeins 13 eftir heillegar.

Íkornakóngur, fimm íkornar fastir saman á skottinu.
- Lucas Reilly. (2017, 24. október). An (Almost) Comprehensive History of Rat Kings. Mental Floss. (Sótt 23.11.2021).
- Andrei Miljutin, (2007). Rat kings in Estonia. Proceedings of the Estonian Academy of Sciences. 56(1), 77-81. (Sótt 23.11.2021).
- Rat king. Wikipedia.com. (Sótt 23.11.2021).
- Alexandra Ossola. (2016, 23. desember). The Complicated, Inconclusive Truth Behind Rat Kings. Atlas Obscura. (Sótt 23.11.2021).
- Jamie Allen. What a Tangled Web a Few Squirrels' Tails Can Weave. How Stuff Works. (Sótt 23.11.2021).
- Rotikuningas.jpg - Wikimedia Commons.org. Höfundur myndar: Ivo Kruusamägi. Birt undir CC BY-SA 4.0 leyfi. (Sótt 23.11.2021).
- Squirrels Tails Stuck Together and This Is Not the First Case - Skedaddlewildlife.com. (Sótt 23.11.2021).