From Spluch:

A local security guard recently discovered a peculiar scene where black swans can be seen feeding goldfish near the shore of a lake located in Hangzhou, China. According to the guard, 9 black swans will climb onto a raft and start feeding the goldfish with their beaks at 10am every morning. The goldfish can always be seen following the swans closely after that. Locals were astonished to find such an affectionate tie existing between the two creatures.