Incubation temperature helps determine a sea turtle hatchling’s sex.

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Green turtle, Chelonia mydas is going for the air.
Animals

Warm sand

Incubation temperature helps determine a sea turtle hatchling’s sex.

A sea turtle nest is more than a container for eggs. Its temperature helps determine whether developing embryos become male or female. Warmer incubation generally favors females and cooler incubation favors males, making the nest environment part of reproductive development rather than merely a source of warmth.

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Octopus vulgaris (common octopus)
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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.

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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