During their first year, largemouth bass grow 4 to 6 inches (10 to 15 cm), 8 to 12 inches (20 to 30 cm) in two years, and 16 inches (40 cm) in three years. They're usually green with dark blotches on either side of the middle. Undersides range from light green to almost white. The dorsal fin is nearly divided with nine spines on the anterior part and 12 to 13 soft rays on the posterior part. There's a lot of space between their upper jaw and their eyelids.
Life of Largemouth Bass
The largest predator in the aquatic ecosystem is the largemouth bass. The fry eat mostly zooplankton and insect larvae. When they're about two inches long, they start hunting. Fish and large invertebrates like crayfish are the only food they eat as adults. Smaller bass are preyed upon by bigger fish.