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What Are Orangutans Thinking? | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/news/what-are-orangutans-thinking

Let’s play a game…for science! With a tap of the touch-screen computer, orangutans at the Smithsonian’s National Zoo try their memories at matching pictures. These games help scientists study the apes’ metacognition. 
rewarded with one of their favorite foods—grapes—but the treat is delivered somewhere else

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Meet the Bat-Eared Fox, an Unusual Animal That Can Hear Insects Burrowing Underground | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/news/meet-bat-eared-fox-unusual-animal-can-hear-insects-burrowing-underground

This peculiar-looking canine uses its exceptional hearing to hunt for termites and beetles — here are some more fun facts about the species.
The remaining part of their diet is just about anything else they can find — fruits

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Bringing DNA Metabarcoding to Lebanon’s Cedar Forests | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/center-conservation-genomics/news/bringing-dna-metabarcoding-lebanons-cedar-forests

Lebanon’s majestic cedar forests are the country’s national symbol. Yet the famous forests and the animals that live there have declined precipitously as the result of logging, invasive species, human encroachment and hunting.
These cedar forests include plants that do not live anywhere else.

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Primates and Peanuts: Testing Tool IQ | Smithsonian’s National Zoo and Conservation Biology Institute

https://nationalzoo.si.edu/animals/news/primates-and-peanuts-testing-tool-iq

Two peanuts sit on a tray. One is beneath the curve of a tool; the other is beside a different tool, out of reach. Smithsonian’s National Zoo’s Allen’s swamp monkey Nub Armstrong is eyeing both. Will he pick the tool that brings the peanut toward him? To examine whether guenons understand how tools work, primate keeper Erin Stromberg and University of Michigan graduate student Missy Painter have teamed up to put these monkeys’ smarts to the test.
we understand what makes a tool useful—that it has a causal effect on something else

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