Strawberries are deadly for people allergic to birch pollen, doctors warn.

The proteins in the berry are similar to those in birch pollen and can cause a severe allergic reaction.

Forward this post to all strawberry lovers.

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The skin of all human beings is covered in stripes. They’re called Blaschko’s Lines, and they cover the body from head to toe. We just can’t see them.

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Eating dates in the last 4 weeks before labour helps with birth.

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Earthworms are hermaphrodites. Each carries male and female reproductive organs. When mating, two individual earthworms will exchange sperm and fertilize each other's eggs.

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A lobster’s brain is located in its throat, its nervous system in its abdomen, its teeth in its stomach and its kidneys in its head. It also hears using its legs, tastes with its feet, and tends to favor one front limb, meaning they can be right-clawed or left-clawed.

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Yahoo was originally called "Jerry's guide to the world wide web"

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Despite its entire population, only about 200 surnames are used in China.

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This olive tree lived through the Iliad writing, the golden age of Athens, the rise of the Roman Empire and the birth of Christ, and then lived for 2,000 years after that. It is thought to be about 2,900 years old. Crete, Greece.

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Over the plains of Canada, the Inukshuk stone figures, built by Inuit since 1000 AD, guide travelers. Shaped like humans, they mark paths. They symbolize survival.

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Iron and oxygen account for most of the Earth's mass.

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Anorexia is the most deadly mental health disorder, carrying a four times greater risk than even depression.

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Formication is a symptom where you hallucinate the feeling of insects crawling in, on or under your skin. This symptom can be very upsetting or disturbing, leading to other issues like self-injury from scratching or trying to get the insects out from under or inside of your skin.

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There is a very rare condition called Anton syndrome, in which a person becomes blind however they are unaware of it and will deny it, as their brain generates (false) visual images so they continue to believe that they can see.

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Android was originally created as an operating system for digital cameras.

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Tickling was a form of torture used in ancient China nobility, because it left no mark and recovery was quick.

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Alligators rarely suffer from infections because they have robust immune systems

Their blood is effective against 23 strains of bacteria, and can even destroy a significant amount of HIV.

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Pupula Duplex is a rare condition where an individual has two pupils instead of one.

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Ants use “social immunization.” If one is infected with a fungus, they still lick the ant, spreading it throughout the colony. This practice both kills some of the spores, and builds immune resistance.

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The lump you feel in your throat when you’re nervous or crying is an autonomic response to stress that expands the glottis in an attempt to provide you with more oxygen.

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The speed record for cars in general was set in 1997 when British racing driver Andy Green drove the Thrust SSC jet to 1,227 km/h, breaking the sound barrier.

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Saliva contains the protein histatin, which heals wounds.

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