Search for pingers complicated by sea life

Searchers are listening for the "pings" emanating from beacons attached to Malaysia Airlines Flight 370's black boxes.

It's a challenging task, even in the best conditions.

Malaysia Flight 370: New signal sounds 'just like' one from a plane's beacon

Needless to say, searching the depths of the Indian Ocean for the high-pitched sound, is far from ideal.

A team of researchers took our Rosa Flores out onto the water to show her the kinds of challenges searchers are facing.