If you add un- to the word happy, the new word becomes unhappy, which means not happy. When affixes are added to the end of roots or root words, they are called suffixes. The most common suffixes are -s and -es, which mean more than one (or the plural) of the word. Adding -es to wish, changes the meaning o the word to more than one wish. Download a copy of the Common Prefixes chart below.
Strongest Dog Bite Force Mastiff with a PSI of 556: This dog has a highest biting force when it comes to the force of biting. The Rottweiler is at a 328, the German Shepherd at 238 and the American Pitbull with 235
Psi can be converted into Pascals (Pa; N/m^2), where 1 psi is approximately 6894.757 Pa. That's roughly 10N/mm^2. Assuming that this 1500 psi bite was recorded at a single tooth with a sharp tip (~ 1 mm^2 in surface area just for simplicity's sake), then that would be 10N bite force. So unless I've done something wrong, it seems entirely possible to me that a grey wolf can bite with a pressure of 1500psi.