4 (also monitor lizard) A large tropical Old World lizard with a long neck, narrow head, forked tongue, strong claws, and a short body. Monitors were formerly believed to give warning of crocodiles.Called goanna in Australia. (also monitor lizard) A large tropical Old World lizard with a long neck, narrow head, forked tongue, strong claws, and a short body. Monitors were formerly believed to give warning of crocodiles.
The most effective way to prevent black toenails is to run in shoes that fit properly. You should have a thumbnails width room between your big toe and the front of your shoe while standing, not sitting. You should also wear moisture thin, moisture wicking socks to prevent increased heat build-up.
Prevention of Black Toenails: To prevent black toenails, make sure that you're wearing the correct running shoe size (at least 1/2 size bigger than your street size; you should have plenty of room in the toebox). You should have one thumbnail's distance between your longest toe and the end of the shoe.