Fun facts 17th May 17

What does it mean to have 20 15 vision?
Some people actually have better than 20/20 vision. For example, if someone has 20/15 vision, this means that that person could be at 20 feet to see an object whereas normal people would have to be at 15 feet to see the same object.
How many pairs of legs does a hermit crab have?
A hermit crab has two pairs of antennae and round eyes on the ends of eyestalks. Hermit crabs have 10 legs, but only 6 legs show. These front 6 legs are known as walking legs. Hermit crabs keep their 4 back legs inside their shell.
Is an ostrich’s eye bigger than its brain?
An ostrich’s eye is bigger than its brain. It is not true that the ostrich hides its head in the sand in time of danger. But young birds will conceal themselves by lying down and stretching their necks out along the ground.
Where did the term goody two shoes come from?
The History of Little Goody Two-Shoes is a children’s story published by John Newbery in London in 1765. The story popularised the phrase “goody two-shoes”, often used to describe an excessively virtuous person, a do-gooder.