My thanks to the wonderful Cindy Knoke for telling me about this rescue. It is truly astonishing!
The gnu, in the jaws of a crocodile, is struggling to cross the river. Death seems almost certain until a bloat of huge (usually aggressive) hippopotami circle the duo and take action. One hippo, whose maternal instinct must have taken over (assuming it’s female), lunges, mouth agape, for the crocodile. It chases it away and escorts the injured gnu safely to the opposite bank.
Amazingly, the hippo then waits by the bank, guarding the gnu against further attacks, and actually tries pushing it up the bank out of the water.
The incredible event took place on the Maasai Mara game reserve in Kenya. It took place three years ago, but has only just gone viral, giving everyone a chance to see it.