Unregulated ocean sand extraction threatens marine ecosystems, disrupts habitats, and accelerates coastal erosion worldwide.

Behind many of these beaches are sand dune systems which provide homes ... Whenever humans interfere with natural ecosystems, the natural nutrient and water cycles are also altered.

The new Argentine dino might give us clues to what the world was like before the asteroid wiped out their kind.

If found picking stones or rocks from the beach ... also loses roughly the same amount of sand. The removal of these materials damages the ecosystems and then leads to their endangerment ...

The gunk has turned up on shorelines from Malibu to Redondo Beach: ghostly lines of charred black bits and melted debris left behind by retreating waves.