Blue whale ancestor was no gentle giant (Reuters)

OSLO (Reuters) - A ferocious-looking fossil with sharp teeth found in Australia shows that ancestors of today's toothless blue whales were not all "gentle giants," a report said on Wednesday. The 25 million-year-old fossil is of an early type of baleen whale, a group including modern humpback whales, minke whales and blue whales that feed via baleen, comb-like plates in their mouths that filter plankton from sea water. "This bizarre, new baleen whale did not even have baleen," Erich Fitzgerald ...