Termites will follow a line drawn by a Bic pen because the ink contains a chemical that mimics their pheromones. In this free lesson plan from LEARN NC, designed for grades 9-12, students observe termites to draw conclusions about their behavior. Click here for the lesson plan. Created by Jacki Clark for LEARN NC.
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Holbrook's 2026 Calendar
Each year, we ask our travelers to submit their favorite photos from their journeys with us for a chance to be featured in our annual calendar. This year, as always, we had many great submissions, and
Photo of the Month: January 2026
This adventure to Torres del Paine had been a bucket list item for many, many years! Now was my time for my “latitude adjustment.” There was beauty at every turn we made!
Photo of the Month: December 2025
Above: The critically endangered Great Green Macaw (Ara ambiguus) is a magnificent species native to the rainforests of Central and South America. These macaws heavily rely on the mountain almond tree