Can a great white shark swim, and live, in rivers?

No. The only species that can live in rivers is bull shark and that is because they can adjust (it reduces the amount of salt and urea to suit different salinities) easily to the change. read more

The bull shark which has been captured in the Amazon River and the Mississippi River several thousand miles far from the ocean and the Bizant River shark which has been caught in Australia in rivers very far from the ocean too. read more

There are 20 different shark species that can survive in freshwater lakes and rivers, including bull sharks, which have been found in unlikely rivers and lakes all over the world. While bull sharks have to migrate to saltwater to reproduce, five shark species actually live year-round in the rivers of Southeast Asia and Australia. read more