Dolphins may sleep-talk in whale song, according to French researchers who've recorded the marine mammals making the non-native sounds late at night. The five dolphins, which live in a marine park in France, have heard whale songs only in recordings played during the day around their aquarium. But at night, the dolphins seem to mimic the recordings during rest periods, a possible form of sleep-talking. And you thought your nocturnal mumblings were weird. LiveScience.com
Dolphin with a hook in its mouth and the fishing line around its flipper seeks help from human divers.