Goof: At the start of the episode Ray states that a creature large enough to leave the bite marks are extinct with 65 million years, and Hodges attempts corrects him stating that it has been 64 million years and 51 weeks. Hodges should actually have said 64,999,999 years and 51 weeks.
David: Did you know that coyotes won't eat the flesh of crystal meth users?
David: It's true. I read it. They can sense the stuff is poison.
Ray: Well, that places them at a higher evolutionary mark than a good deal of human beings.
Ray: Anything printed on the keychain?
David: (joking) If found eaten by animals, please call...
International Episode Titles:
Czech Republic: Studenokrevně (Cold Bloodedly)
Although listed in the opening credits, Jorja Fox does not appear in this episode.
Original International Air Dates:
Canada: October 28, 2010 on CTV
Australia: November 18, 2010 on Channel 9
Sweden: December 13, 2010 on Kanal 5
United Kingdom: February 15, 2011 on Five/Five HD
Norway: March 15, 2011 on TVNorge
Slovakia: August 4, 2011 on JOJ
Germany: October 6, 2011 on RTL
Spain: October 18, 2011 on AXN
Finland: November 2, 2011 on MTV3
Czech Republic: February 23, 2012 on TV Nova