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2721 |
duddy |
10 years ago |
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4091 |
savio |
10 years ago |
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4959 |
duddy |
10 years ago |
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Smallest bone in the body
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Take a good look at that tiny piece of art. It is the smallest bone in the body is called the stirrup (or stapes) bone. It is one of the three bones that make up the middle ear; measuring about 2-3 millimetres. It has a U-shape and is the inmost bone that collects sound vibrations and then passes them along to the cochlea for interpretation by the brain. ...
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5604 |
savio |
10 years ago |
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Liver genes play a role in sleeping
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New research has shown that liver genes play a key role in regulating our body clock, and could be the target for treatments that help shift workers and international travellers 'reset' their internal rhythm and reduce their risk of obesity and diabetes.
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2614 |
savio |
10 years ago |
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7758 |
duddy |
10 years ago |
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Which animal has the densest fur, try to guess
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With up to one million hairs per square inch of its body, the sea otter has the densest fur in the animal kingdom. (To put this in perspective, you’ve probably only got 100,000 hairs or less on your whole head!) Together with a huge lung capacity, this makes these water-loving creatures extremely buoyant. The pups are born so buoyant, they're incapable of diving underwater, and are often left bobbing on the surface in a sea kelp bed while their mothers hunt for food nearby.
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10117 |
duddy |
10 years ago |
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Butterfly tongue
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This is a coiled butterfly tongue magnified 60 times.
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5258 |
duddy |
10 years ago |
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Why do men have bigger noses than women?
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Men’s noses are 10% larger than female's. Males generally have leaner muscles and need more oxygen for muscle growth and maintenance—and larger noses mean more oxygen can be breathed. A new study found that the difference in nose size between males and females of European descent starts showing in early puberty, when 95% of body weight gain in males comes from fat-free mass, compared to 85% in females.
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6490 |
duddy |
10 years ago |
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4015 |
duddy |
10 years ago |
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Shock-absorbing goo found within bones
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A viscous fluid made out of citrate and water is what gives our bones flexibility. The gooey fluid is trapped between the tiny crystals of calcium phosphate that form our bones, absorbing shocks and allowing movement. Without this fluid the crystals fuse together and become less flexible and brittle.
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3042 |
duddy |
10 years ago |
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Drinking seawater to survive
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A seagull on a glass roof looking really cute. Seagulls are able to drink seawater to survive thanks to salt glands just above their eyes. These glands eliminate excess salt from the seawater and flush it out of the birds' nostrils in liquid form, an action that's often mistaken for a sneeze.
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1930 |
duddy |
9 years ago |
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Coolest teeth
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Crabeater seal teeth are probably the strangest in the entire animal kingdom. The odd shapes work as a sieve, filtering out microscopic organisms (the seals' main food source) from sea water.
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3869 |
duddy |
9 years ago |
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Kidney stones suck, and here's why
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This is a scanning electron micrograph of a kidney stone. These stones are pesky formations of calcium that form in the human body and are considered the most common disorder of the urinary tract.
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9127 |
duddy |
9 years ago |
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A closer look at white matter
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This is what all the white matter in your brain looks like. This complex 3D-printed model accurately reflects the 2,000 strands of nerve cells that branch through every human being's brain.
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7330 |
duddy |
9 years ago |
