Most marine animals form their shells from calcium carbonate, which is a tough mineral also found in limestone. Some sponges ...

Some 20,000 years ago, when the last ice age was at its peak, a marine animal with an ultrashort lifespan of just one month, really lived in the moment. In its brief and wondrous life, the ...

One hundred thousand years ago, a human cousin walked a rock- ribbed beach along the Mediterranean Sea, her head lowered and her large eyes scanning the shoreline. Now and again she stopped, bent her ...

Add Yahoo as a preferred source to see more of our stories on Google. Marines fire a M777 howitzer in a rehearsal on Oct. 17, 2025. The Marine Corps is investigating reports that one of its artillery ...

Naturally occurring oyster reefs and salt marshes surrounding much of Marine Corps Recruiting Depot Parris Island, South Carolina, in May 2022. (Stephen B. Morton/AP) A coastal conservationist group ...

Sitting atop the crow’s nest of a small barge, the boat captain shielded his eyes from the July sun and pitched his gaze to the commotion below. The hum of heavy equipment and the clatter of oyster ...