References:

What is the difference between a wolf and a coyote?

http://www.differencebetween.net/science/nature/difference-between-coyote-and-wolf/

https://www.wildlife.ca.gov/conservation/mammals/gray-wolf/identification

Who made the first Roller Coaster?
https://eu.usatoday.com/story/travel/experience/america/theme-parks/2017/07/28/history-roller-coasters/518356001/

https://www.wired.com/2011/12/pl-prototyperollercoaster/

https://www.thevintagenews.com/2016/12/22/catherine-ii-the-great-of-russia-ordered-the-construction-of-the-worlds-first-roller-coaster/

What is the strongest animal and the weakest?

https://www.quora.com/Which-is-the-strongest-and-weakest-animal-in-the-earth

https://trove.nla.gov.au/newspaper/article/58430489


How do cars get their names?

http://www.castlegartoyota.com/blog/2017/08/21/how-do-cars-get-their-names

http://thenewswheel.com/the-meaning-behind-toyota-model-names/

https://www.ranker.com/list/full-list-of-bmw-models/reference


Why does sugar make you jumpy?

https://medlineplus.gov/ency/article/002426.htm

https://www.science.org.au/curious/people-medicine/does-sugar-really-make-kids-hyper

https://www.livestrong.com/article/507019-why-does-sugar-make-you-hyper/

https://kidshealth.org/en/teens/hypoglycemia.html

How did humans learn to write and speak?

http://www.sciencemag.org/news/2015/01/human-language-may-have-evolved-help-our-ancestors-make-tools

https://www.linguisticsociety.org/resource/faq-how-did-language-begin

https://gridclub.com/subscribers/info/fact_gadget_2009/1001/history/first_civilisations/424.html


Eye twitching

https://www.healthline.com/health/eyelid-twitch#treatment
https://www.allaboutvision.com/conditions/eye-twitching.htm

Can you teach a blind person colors?

https://www.youtube.com/watch?v=59YN8_lg6-U

https://www.cliffsnotes.com/cliffsnotes/subjects/sciences/how-would-you-describe-a-rainbow-to-a-person-who-has-been-blind-their-entire-life-and-doesn-t-understand-colors


What would happen if all animals were herbivores?

https://www.quora.com/What-will-happen-if-every-animals-were-herbivorous

https://www.livescience.com/53452-herbivores.html


Why is a baby kangaroo called a Joey?

https://www.nationalgeographic.org/media/koala-and-joey/

http://koalainfo.com/a-baby-koala-is-called-joey