This video from the USA is called Humpback Whales Monterey Bay 9/15/07.
From New Scientist:
Whale’s diet revealed in its doo-doo
* 01 December 2007
* Magazine issue 2632
Want to find out what whales eat? There’s no need to cut them open, just wait until they relieve themselves.
One of the reasons given by the Japanese government for its “scientific” whaling programme is to learn more about the animals’ diet. Now Stacy DeRuiter at the Woods Hole Oceanographic Institution in Massachusetts and her team have developed a way of investigating diet by identifying mitochondrial DNA from the remains of the prey in a whale’s faeces.
The team has collected samples from several cetacean species and discovered, for example, that faeces from Blainville’s beaked whale contain DNA evidence of bony fish, including gulper eel. It had been thought to dine primarily on squid.
“It’s now certainly the case that we can get as good diet information from DNA analysis of faeces as we can from dead whales – probably better,” says Simon Jarman of the Australian Antarctic Division …