News
- Humans
Possibly pivotal human ancestor debated
An ancient species that may have sparked the rise of humankind gets a new appraisal.
- Life
Complex life hit freshwater early
Tiny fossils in Scottish rock show that cells with nuclei had spread beyond the seas by a billion years ago.
- Earth
Seismologists rumble over quake clusters
Japan tremor may be part of a second grouping of great quakes since 1900, some scientists say.
- Life
Gone fishing, orangutan-style
Apes that catch fish in ponds and eat them raise the possibility that ancient hominids did the same.
