Scientists filmed octopuses in Indonesia finding, carrying, and assembling coconut shells to hide inside. Their 2009 study classifies this behavior as tool use because the octopus had to gather the shells with a future plan in mind. Other researchers are unsure whether the octopus is truly demonstrating tool use (but all parties agree that the invertebrates are highly intelligent).
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Key Facts In This Video
Octopuses are said to be the world's most intelligent invertebrates. 00:01
Octopuses in Indonesia have been observed carrying coconut shells and assembling them into shelters. 00:18
Because octopuses are gathering coconut shells for a future purpose, scientists say that the behavior qualifies as tool use. 00:35