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.

AP - Paleontologists have created detailed three-dimensional images of evolution's first multicellular creatures in their embryonic stages, some so detailed that they reveal more about the development of long-extinct creatures than scientists know about their modern counterparts.

Reuters - A new technique allowing virtual dissections of half-billion year old fossil embryos is producing the first three-dimensional images of the dawn of life.

AFP - The first fossilised bone marrow has been found in the bones of 10-million-year-old frogs, salamanders and tadpoles by scientists working in northeastern Spain, the leader of an international research team said.

AP - Scientists have identified two ancient reptiles that swam in icy waters off Australia 115 million years ago, researchers said Friday. They are among the first of their kind to be found from the period soon after the Jurassic era.

AFP - Paleontologists in northern Greece have unearthed the intact skull of a prehistoric primate that lived at least five million years ago, a member of the research team has said.

Reuters - Language centers in the brains of rhesus macaques light up when the monkeys hear calls and screams from fellow monkeys, researchers said in a study that suggests language skills evolved early in primates.