"A fish sucked him up before I could get a picture." Experts concerned after fisherman spots creature in lake where it doesn't belong: 'I wasn't sure what it was' first appeared on The Cool Down.

Read how the uniquely startling telescopefish hunt, thrive, and remain one of the ocean’s most mysterious residents.

Most fish ignore their humans except at feeding time, but this little fish bounces around the tank to greet his human like a little dog.