Octopuses have three hearts and blue blood. Two hearts pump blood to the gills, while the third circulates it to the rest of the body. Their blood turns blue because it relies on copper instead of iron to carry oxygen.

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The American Civil War
was fought between the Northern states (the Union) and the Southern states (the Confederacy) from 1861 to 1865, primarily over the economic and moral issue of slavery

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Butterflies taste everything with their feet. They have taste sensors on their legs to quickly determine if a plant is safe to eat or lay eggs on just by landing on it.

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Polar bears look white, but their skin is actually jet black. Their fur is completely transparent and hollow, reflecting light to blend into the snow while their black skin absorbs heat from the sun.

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Rats laugh when they are tickled. While you can't hear it with the naked human ear, scientists using special microphones discovered that rats emit ultrasonic chirps that match the acoustic profile of human laughter.

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Flowers can be an instant mood lifter. Brain chemicals such as Oxytocin, dopamine, and serotonin are released when you have a positive reaction to flowers. These happy brain chemicals trigger feelings of bonding,excitement & genuine happiness.

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You grow so accustomed to your own body odour that you eventually don't realise that you have one. When you can start to smell a little bit of your odour then its gotten to the point where you need to seriously take a deep clean. Had to learn this the hard way.

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A women who lost her wedding ring found it 16 years later in her garden 😂

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If you can smell yourself a little bit, others can smell you a lot.

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Hugging yourself can boost oxytocin levels and reduce stress. It can even increase your pain tolerance.

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