каждый да будет весел и добр до часа кончины
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The team suspect the octopus may have evolved its building acumen to avoid predators. Unlike many other octopus species, it lacks camouflage skills. When they excavated much of the burrow under the sea, they found that the octopus could reconstruct its burrow and chimney within minutes by pushing the tips of two arms up to the surface.
With its thin arms and elongated body, it may also have evolved to access and feed on worms and crustaceans that live inside narrow burrows underneath the sand, Montana says. This is potentially an abundant yet unexploited food source.
In support of this theory, the team has spotted the octopuses probing down pre-existing worm holes with their arms and pushing their entire bodies inside.