Hair, Teeth and Water: teacher key

Bigfoot and the Loch Ness Monster, grade 9 edition, written for 9th grade. Labs have read the DNA in hairs said to come from Bigfoot and the Yeti, and in water taken from Loch Ness. Here is what the tests found and what they could not say.

Read the book. Print this page for the key.

Questions and answers

1. When did the Oxford team send out its call for hairs?
   • 14 May 2012 (answer)
   • 1 April 1929
   • In 2018
2. What did almost all the hairs in the Oxford tests turn out to be?
   • From unknown apes
   • From known animals such as bears, horses and cows (answer)
   • From plesiosaurs
3. How many water samples did the 2018 team take from Loch Ness?
   • About 25
   • About 3,000
   • More than 250 (answer)
4. Why could the 2018 team not rule out giant eels?
   • Eel DNA does not tell how big the eels are (answer)
   • Eels were not found
   • The samples were lost
5. In the sentence about the survey, what does "systematic" suggest?
   • Done by accident
   • Done following a plan (answer)
   • Done in secret

Words

• systematic: planned and orderly
• sequences: stretches of code
• plesiosaur: old sea reptile
• trawler: fishing boat
• survey: wide, planned check