The Intelligence Of Corvids Ielts - Reading Answers

– Explanation: The passage states that scientists believed the smooth forebrain looked primitive and that without a neocortex, complex thought was impossible.

5. Ravens will sometimes pretend to hide food to mislead other birds. 6. The brain of a crow contains more neurons than the brain of a chimpanzee. 7. Corvids are the only non-human animals known to engage in tactical deception. Questions 8–10: Summary Completion Complete the summary below using words from the box. the intelligence of corvids ielts reading answers

– Explanation: The scrub-jays remembered what, where, and when. They checked different caches based on how long the food had been stored and its decay rate. – Explanation: The passage states that scientists believed