May 3 - May 9 Discover nature as a mentor this week and teach someone to fish. Male catfish will begin making nests around logs this week. Though many kinds of catfish occur throughout the world, there are 15 native and one introduced species in Missouri. The name “catfish” results from the presence of four pairs of long, slender barbells near the mouth that resemble the whiskers of a cat. Like their namesake, catfish are most active at night and hid in natural cavities and crevices during