World Explained · Ocean
How octopus arms make decisions without being eight separate brains
An octopus distributes sensing and motor control through its arms, but the evidence does not turn each arm into an independent mind.
Curiosity Desk category
Ocean articles
Every published story filed under Ocean, newest first. Each one passed the same source, image and editorial checks.
6 published storiesNewest first
Explore Ocean
World Explained · Ocean
Why whale songs can travel extraordinary distances
Low frequencies, ocean layering and a quiet receiving site can let some whale calls remain detectable far beyond visual range.
World Explained · Ocean
How life thrives around ocean vents with no sunlight
Hydrothermal vents support crowded animal communities in total darkness because microbes harvest chemical energy. The real system is stranger, and more connected to the surface, than the usual headline suggests.
Australian Curiosity · Ocean
How cuttlefish create moving colour on their skin
Pigment organs behave like biological pixels while deeper reflectors and movable skin texture let a cuttlefish transform in less than a second.
Australian Curiosity · Ocean
The night the Great Barrier Reef releases its future
For a few nights, fixed coral colonies release buoyant egg-and-sperm bundles together. The spectacle begins a hazardous journey rather than guaranteeing reef recovery.
Australian Curiosity · Ocean
How blue-ringed octopuses flash their electric-blue warning rings
The rings do not turn blue like tiny screens. Microscopic reflectors are already there, and a fast muscular movement uncovers them when the octopus displays its warning.
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