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Octopus

Life

Octopuses may be able to dream and change colour when sleeping

Octopuses cycle between quiet and active phases of sleep, similar to reptiles and birds, and may experience dreams during the active parts

News

Sea turtles, sharks and king penguins swim in mysterious circles

Environment

Sea turtles, sharks and king penguins swim in mysterious circles

News

How deep is the Mariana trench?

Question

How deep is the Mariana trench?

The Brilliant Abyss review: A fascinating tour of the ocean’s depths

Life

The Brilliant Abyss review: A fascinating tour of the ocean’s depths

Culture

flower

Life

Fairy lantern flower has a gaping 'mouth' and saps energy from fungi

News

Technosignatures

Definition

Technosignatures

What’s next for the Mars Perseverance rover? Your questions answered

Space

What’s next for the Mars Perseverance rover? Your questions answered

News

Deepest land-dwelling microbes found at bottom of 5km hole in China

Life

Deepest land-dwelling microbes found at bottom of 5km hole in China

News

Ten conservation success stories when species came back from the brink

Life

Ten conservation success stories when species came back from the brink

Features

Life found beneath Antarctic ice sheet 'shouldn't be there'

Video

Life found beneath Antarctic ice sheet 'shouldn't be there'

Biologists say the inadvertent discovery of sea life on a boulder underneath an Antarctic ice shelf and hundreds of kilometres challenges our understanding of how far organisms can live from sunlight.

Video

Video

Avi Loeb: Is ‘Oumuamua extraterrestrial technology?

Video

Environment

Life found beneath Antarctic ice sheet 'shouldn't be there'

News

Space

Avi Loeb interview: Could ‘Oumuamua be alien technology after all?

Features

Space

Dyson spheres: How to spot an alien megastructure

Features