Mosquitoes lay their eggs on the water’s surface while growing in still or slow-moving water; they can lay between 100 and 400 eggs at a time. These eggs hatch into larvae that look like tiny worms within two days. When the temperature is right (between 22°C and 27°C), the transformation from egg to adult takes as little as ten days. In summer, male mosquitoes only live a few days, but their female counterparts have a lifespan of about three weeks. As adults, some Canadian species hibernate, allowing them to live up to nine months.