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| Word/Phrase | Definition | Example from Passage | |-------------|------------|----------------------| | Demolished (v) | Destroyed an idea or belief | "...demolished this prejudice" | | Spontaneously (adv) | Without external cause or training | "Betty spontaneously bent the wire" | | Episodic memory (n) | Memory of specific events with time/place | "Scrub jays demonstrate episodic memory" | | Analogous (adj) | Similar in function but not structure | "The pallium is functionally analogous" | | Convergent evolution (n) | Unrelated species evolve similar traits | "Convergent evolution...different brain structures, similar solutions" | | Cached (v) | Stored or hidden for future use | "Cached food in two distinct locations" |
For centuries, the avian family Corvidae —which includes crows, ravens, rooks, and jays—has been dismissed by biologists as mere "bird-brains." However, a surge of research over the past two decades has demolished this prejudice. Corvids demonstrate tool use, episodic-like memory, causal reasoning, and even social manipulation. These abilities rival those of great apes and cetaceans, despite the vast differences in neuroanatomy.
The passage highlights that corvids are far from "bird brains," often rivaling primates in cognitive ability. Key behaviors discussed include: To secure a high band score, expert platforms
The IELTS reading passage explores the advanced cognitive abilities of birds like crows, ravens, and magpies, specifically focusing on their tool-making, memory, and social cooperation. Below are the key answers and explanations for this passage. Reading Answers Key Question Number Correct Answer Explanation 1 A
Corvids also exhibit sophisticated social intelligence. In the wild, ravens have been documented consorting with wolves, leading them to carcasses and then sharing the spoils – a form of cooperative hunting. Furthermore, crows recognise individual human faces and remember those who have threatened them for years. In one study, researchers wearing a mask captured and released crows; thereafter, even when wearing different clothes, the masked individuals were consistently scolded by crows, and the alarm calls spread to other crows that had not directly experienced the capture. This indicates not only long-term memory but also social transmission of information.
(Jane Goodall's work showed they weren't the only ones). 29. Insects/Larvae (retrieved from wild environments). The passage highlights that corvids are far from
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While some people may argue that animals are not capable of complex thought or problem-solving, I disagree with this statement. Many species, including those in the corvid family, have been observed exhibiting intelligent behavior, such as tool use and complex social interactions.
The text for The Intelligence of Corvids is a popular IELTS Academic Reading passage that explores the advanced cognitive abilities of birds like crows, ravens, and rooks. It often highlights how their intelligence rivals that of primates. Core Passage Content and future planning.
This section dismantles the historical misconception of the "birdbrain." It introduces the concept of the encephalization quotient (brain-to-body mass ratio) and notes that corvids possess ratios similar to chimpanzees.
Look for absolute qualifiers like all , never , always , or only . If the text says "most corvids use tools" and the question states "all corvids use tools," the answer is False . If the text does not mention whether other bird families use tools, a statement comparing them is Not Given . Summary Completion (with or without a word bank)
: Paragraph E mentions that "birds lack the layered cerebral cortex found in mammals." 12. working memory
Corvids – a family of birds that includes crows, ravens, rooks, magpies, and jays – have long captured the human imagination. Traditionally dismissed as mere pests or symbols of ill omen, these birds are now the subject of intensive scientific scrutiny. Researchers have uncovered evidence suggesting that corvids possess cognitive abilities rivaling those of great apes and even young humans. This essay examines the key dimensions of corvid intelligence: tool use, episodic-like memory, social reasoning, and future planning.