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Crows can recognise individual human faces and remember the people who treated them badly.

Animals feed

An American crow perched and looking toward the camera
Animals

Faces

Crows can recognise individual human faces and remember the people who treated them badly.

Yes. Studies at the University of Washington showed American crows can recognise individual human faces, remember people who threatened them for years and even teach other crows to avoid those people.

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Octopus vulgaris (common octopus)
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3

Octopuses have three hearts and blue blood.

Octopuses have three hearts: two supply the gills and one supplies the rest of the body. Their oxygen-carrying protein contains copper and turns blue when oxygenated.

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Common Wombat (Vombatus ursinus tasmaniensis) on Maria Island, Tasmania, Australia. The entire island is a national park, Maria Island National Park. The adult is just under a metre in length on average.
Animals

Cubes

Wombats poop cubes.

Wombats produce distinctly cube-like droppings, shaped inside the intestine rather than by a square opening. Research links the shape to differences in the mechanical properties of the intestinal wall.

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