
Why Is This Bird Feeding Goldfish?
A few years ago, a birdwatcher in rural Illinois noticed a cardinal behaving strangely in her garden. It seemed to be feeding her goldfish. As many as six times in a single day, the bird would return to the pond where the fish would greet it with open mouths.
The bird would apparently feed them seeds and other food, as if they were chicks in a nest. In fact, the fishes' mouths may have looked just enough like those of baby birds that a parental instinct kicked in.
Read More
explore videos
Animals3:07
Why these birds hide their sexual trysts
Animals1:30
Watch flatfish 'walk' using finger-like fins
Animals1:00
World Migratory Bird Day
You might also like
How animals choose their leaders, from brute force to democracy
Dragon snakeheads—strange new underground fish—discovered in India
The 232 animals in this photo were killed by house cats in just one year
‘Crocodile tears’ are surprisingly similar to our own
This fish is ‘king of the reef.’ But high-end diners may change that.