A 35,500-year-old ax found on sacred Aboriginal land in Australia is the oldest tool of its kind ever found.
New evidence includes details of other attacks by Australia's native wild dog on humans.
The teenager who reportedly rode a whale may have broken the law, but the culprit is lucky to have escaped without a broken neck.
Instead of storing flight data on board, aircraft could easily send the information in real time to the ground.
Dating to 650 million years ago, evidence of primitive sponges pushes the fossil record back by about 70 million years.
The odor change can be deadly to young fish that become disoriented and less able to avoid predators.
For years, the Maori tribes have sought the return of artifacts kept in collections abroad.
A small amount of oil is detected on North West Island, a breeding site for hundreds of thousands of seabirds and turtles.
About 2 tons of oil have already spilled out into this fragile ecosystem.
A Chinese ship has run aground on the Great Barrier Reef, prompting fears of environmental damage.