Watch giant river otters learn to fish

Giant river otters, some nearly two meters long. This family are exploring a new territory, a stretch they are keen to claim. Led by dad, the family follow his calls with a chorus that is unique to their group. They are looking for a spot rich in fish. Now the parents can teach their young how to hunt. It will be a testing time for the most inexperienced cub. Father coordinates the hunting party. Because fish can evade otters in the deep water, the family's best chance is to corral the fish up against the bank. This youngster has missed out. Everyone seems to have a fish but him. Luckily, the others are usually generous enough to share, which won't impress father. It takes three years for an otter cub to master the complexities of fishing in these rivers.