The Intelligence Of Corvids Ielts Reading Answers -

Recent neuroanatomical studies reveal that while corvids lack a neocortex, they possess a high density of neurons packed into their pallium (the forebrain region). In fact, some corvids have a higher percentage of neurons in their forebrain than many primates. The result is a brain that, while physically small, performs computational feats that rival those of great apes. One of the clearest indicators of higher intelligence is the ability to not just use a tool, but to modify one. The New Caledonian crow is the poster child for this behavior. In controlled experiments, these crows were presented with a stick too short to reach a piece of food and a piece of wire. Without any training, the crows bent the wire into a hook to retrieve the food. This spontaneous manufacture of a novel tool demonstrates causal reasoning —the ability to understand that modifying an object changes its physical effect on the environment.

| | instinct | neocortex | apes | pallium | | The intelligence of corvids challenges the old insult of "bird brain." Unlike mammals, birds do not have a (8) ______________; however, their forebrain region, called the (9) ______________, contains a dense packing of neurons. The ability of New Caledonian crows to bend wire into hooks proves (10) ______________, not simple trial and error. | IELTS Reading Answers Key Here are the correct answers for "the intelligence of corvids ielts reading answers":

An IELTS Reading Exercise & Answer Key When IELTS candidates encounter the topic of animal intelligence, the usual suspects—chimpanzees, dolphins, and elephants—often come to mind. However, a growing body of scientific literature focuses on a much smaller, feathered genius: the corvid. This family of birds, which includes crows, ravens, magpies, and jays, has repeatedly shattered our assumptions about the link between brain size and cognitive ability. For test-takers, understanding this topic is not just fascinating; it is essential, as passages about corvid intelligence have appeared in academic reading sections due to their rich vocabulary and clear logical structure. The Myth of the "Bird Brain" For centuries, the phrase "bird brain" was used as an insult to denote a lack of intelligence. This prejudice stemmed from the smooth, un-layered structure of the avian forebrain, which looked primitive compared to the laminated mammalian neocortex. Scientists assumed that without a neocortex, complex thought was impossible. Corvids have forced a complete rewrite of this neurological textbook. the intelligence of corvids ielts reading answers

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.

– Explanation: The passage specifically mentions the New Caledonian crow performing this feat. It does not claim all corvids can do this. One of the clearest indicators of higher intelligence

This is not instinct. In a famous experiment dubbed the "Metatool" test, crows had to use a short stick to retrieve a longer stick, which could then be used to retrieve food. This multi-step problem solving, known as , requires planning and an understanding of future needs, a trait once considered uniquely human. Episodic Memory and Planning for the Future For a long time, episodic memory—the ability to recall specific past events (what, where, and when)—was thought to belong only to humans. Western scrub-jays have disproven this. In landmark studies, these birds cached (stored) different types of food. They learned that one type of food (wax moths) decayed quickly, while another (peanuts) lasted longer. When allowed to recover their caches, the jays did not search randomly. They specifically went to the sites where peanuts were stored after a long delay, and to the wax moth sites immediately after caching. This shows they remembered what they hid, where they hid it, and when they hid it.

– Explanation: The passage states that tactical deception is a "hallmark of advanced intelligence" but does not claim corvids are the only non-humans to do this. Without any training, the crows bent the wire

– 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.