- RESEARCH HIGHLIGHT
Reptiles known as ‘living rocks’ show surprising cognitive powers

Experimenter Tamar Gutnick with George, a 90-year-old Aldabra tortoise who was schooled to follow a toy of a particular colour. Credit: Michael Kuba
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Nature 576, 10 (2019)
doi: https://doi.org/10.1038/d41586-019-03655-5