Complete the summary below. Choose NO MORE THAN TWO WORDS from the passage for each answer.

Displays the ability to relocate hidden food to prevent theft. (Answer: )

Corvids display intelligence through tool use and memory. New Caledonian crows can (5) ______ tools, as seen when Betty made a hook. Meanwhile, scrub jays demonstrate (6) ______ memory by recalling the decay rate of different foods. This ability to remember (7) ______ events was once thought to be uniquely human.

F. The discovery of corvid intelligence challenges our understanding of evolution. It suggests that complex intelligence has evolved along very different paths. Birds and mammals last shared a common ancestor over 280 million years ago. Yet, both groups have developed similar cognitive abilities. This is a prime example of convergent evolution, where similar traits evolve independently in unrelated groups due to similar environmental pressures.