Harriet (c. 1830 – June 23, 2006) was a Galápagos tortoise (Geochelone nigra porteri) who had an estimated age of 175 years at the time of her death in Australia. Harriet is the third oldest tortoise, behind Tu’i Malila, who died in 1965 at the age of 188, and Adwaita, who died in 2006 at the estimated age of 255.
If somebody is said to be once bitten twice shy, it means that someone who has been hurt or who has had something go wrong will be far more careful the next time. It’s something that you say when you have had an unpleasant experience and are going to be more careful to avoid a similar experience in the future.
When light strikes an object, some of it penetrates the object, and some of it is reflected and reaches your eye. When an object is wet, more light penetrates the object, so less light is reflected. As a result, less light reaches your eye and so the wet object looks darker. Read on for a more detailed explanation.