Scientists replicated this with crows. The birds were offered a less preferred food item (like a piece of dried meat) or a token they could exchange later for a better food item (like sausage). The crows passed. They demonstrated the ability to think about the future—a trait once thought unique to humans and great apes.
| Paragraph | Correct Heading | |-----------|----------------| | Para A – Introduction to corvids and their reputation | | | Para B – Tool use in New Caledonian crows | Feathered toolmakers | | Para C – Social intelligence and caching behavior | Deception and memory | | Para D – Brain structure comparisons with primates | Convergent evolution of intelligence | | Para E – Mirror self-recognition in magpies | The test of self-awareness | the intelligence of corvids ielts reading answers
The IELTS Reading test frequently features academic articles exploring animal behavior, cognition, and evolutionary biology. One of the most popular and intellectually stimulating topics encountered by test-takers is the remarkable intelligence of corvids—the bird family that includes crows, ravens, rooks, jays, and magpies. Scientists replicated this with crows
: One pair of crows even fooled human researchers by building a They demonstrated the ability to think about the