How octopuses walk on two arms while camouflaged

Octopuses can walk while pretending to drift

Some octopuses move using only two arms while making themselves look like pieces of drifting plants. This lets them move away from predators while staying hidden instead of simply swimming away.

Some roadside objects are designed to break when a car hits them

Some road signs, light poles, and other roadside objects are deliberately designed to collapse or break away when struck by a vehicle. Giving way during the crash can make the impact less dangerous for the people inside the vehicle.

Egyptian was written for more than four thousand years

The Egyptian language appears in written records from around 3200 BCE and continued through later stages including Coptic. Its writing systems and spoken forms changed enormously over time. Coptic survives in religious use today, preserving a direct linguistic connection to the language of ancient Egypt's earliest inscriptions.

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How octopuses walk on two arms while camouflaged

Octopuses can walk while pretending to drift

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