Dr Bridge says it's not known exactly why this is the case, though it's suspected that the forked tail allows fish to swim more 'silently'.

According to internet sources, with its white flesh, this fish is lower in fat than any other source of animal protein. The oily semutundu is rich in omega a-3 fatty acids, the good fats.

DESCRIPTION: Both fish are minnows with slender, silver bodies and forked tail fins. The headwater chub is dark gray with silvery sides. The roundtail chub is olive gray to silver with a ...