What is a broken foot? A broken foot is a condition characterized by a fracture of one of the 26 bones in your foot. The fracture may occur in your toes, ankle, heel or midfoot. A broken foot may result from a variety of injuries, including falls, accidents, or dropping an object on your foot. Osteoporosis, which is a thinning and weakening of the bones, is an additional cause of broken feet.
Period when the first true fish appeared - Crossword Clue. Below are possible answers for the crossword clue Period when the first true fish appeared. SILURIAN. from  425 million to 405 million years ago; first air-breathing animals.
The Cenozoic Era is known as the Age of Mammals.. This era is broken down into time periods according to the life forms that lived during that time. In the Paleogene Period, rodents, small horses were common and rhinoceroses and elephants first appeared. By the end, dogs, cats, and pigs became common mammals.