Leonardo da Vinci's depiction of the bones, muscles and tendons of the hand, c.1510-11 http://www.dailymail.co.uk/sciencetech/article-2292206/The-startling-accuracy-Leonardo-da-Vincis-anatomical-sketches-revealed-comparison-modern-medical-scans.html
Since this is probably most people, I do believe with the spread of information, the future of our food industry and in turn our dear animal friends, much like many massive mistakes by humans, will be very different (:
Dolphins Save Drowning Dog! - On Marco Island, Florida a group of dolphins came to the aid of a lost Dog that had fallen into a canal and couldn’t get out. The dolphins made so much noise, it attracted the attention of people living nearby, who then rescued the dog. The Dog was believed to have spent 15 hours in the canal water before he was pulled out by fire personnel and reunited with his owner.
Dyslexia is a learning disability that effects peoples ability to learn through reading, writing and spelling, it is also known to effect peoples memory. The British Dyslexia Association (No date) explains that approximately 10% of the population is affected by dyslexia. Dyslexia effects each person differently, and currently has no specific cause, although is can be genetic.