Christopher Joyce appears in the following:
Thursday, July 30, 2015
The stethoscope seems so simple — a 19th century tool for listening more closely to the human heart or lungs. It also sparked a culture of listening that is transforming the way scientists learn.
Tuesday, July 28, 2015
Scientists say remains of four men exhumed from what was once an Anglican church suggest they were well-nourished, "high-status" leaders in the early 17th century colony. And one was likely Catholic.
Tuesday, July 21, 2015
Scientists assume a wave of people from what's now Siberia crossed into North America via Alaska, maybe 23,000 years ago. Genetics support that, but may also suggest another wave from Australasia.
Friday, July 17, 2015
The international report card is out and confirms the hottest average on record — for a third time in 15 years. More than 400 scientists contributed data, finding a spike in sea and air temperatures.
Monday, June 29, 2015
Monday's decision from the high court technically only applies to the Clean Air Act's standards on mercury emissions from power plants. But it could affect future EPA regulations, legal experts say.
Friday, June 19, 2015
To stop elephant slaughter in Africa, zoologist Sam Wasser spent years extracting DNA from elephant dung and tissue. Much of the world's poached ivory, he discovered, comes from just two hotspots.
Thursday, June 18, 2015
The new evidence suggests the ancient skeleton is closely related to members of a Washington state tribe. The findings are likely to rekindle an old debate between scientists and Native Americans.
Monday, June 15, 2015
Atlantic cod have become scarce along the coast, though catch limits have been reduced by 80 percent. Researchers are now tracking the sound of mating cod, hoping to help fishing boats avoid them.
Friday, May 22, 2015
The ocean's tiniest inhabitants — including bacteria, plankton, krill — are food for most everything that swims or floats. Now, scientists have completed a count of this vast and diverse hidden world.
Friday, May 15, 2015
Royal Dutch Shell can drill oil exploration wells this summer in the Chukchi Sea, if Shell shows it can prevent and clean up a potential spill. Environmentalists are skeptical; Shell says it's ready.
Wednesday, April 15, 2015
Researchers in Kenya uncover tools dated to 3.3 million years ago, long before the first humans, as we know them, walked the Earth.
Tuesday, March 31, 2015
The White House proposal will be submitted at the next big climate meeting in Paris this December. It marks the beginning of a worldwide plan for countries to combat climate change.
Thursday, March 26, 2015
The rate at which the ice is shrinking at the ocean's edge in the West Antarctic has increased by 70 percent over the past decade, an analysis of satellite measurements suggests.
Thursday, March 19, 2015
It's all in the timing. Biologists haven't been able to breed embryos of the rare, pillar coral in the lab because it's been tough to catch the creatures in the act.
Thursday, March 19, 2015
The length of the average car loan isn't just creeping up, it's leaping up. Nearly 40 percent of people secure car loans that take more than five years to pay off. The trend has some analysts alarmed.
Tuesday, March 17, 2015
Four tropical cyclones have been sweeping through the western Pacific and the Indian Ocean. One slammed into the island nation of Vanuatu. Having four cyclones at once is rare but not unheard of.
Wednesday, March 11, 2015
This sea monster swam Earth's seas about 480 million years ago and was the biggest creature of its day, scientists say.
Thursday, March 05, 2015
The 2.8 million-year-old bone may mark the first human branch in the primate family tree. It wasn't just a bigger brain that marked the shift, scientists say. It was also big changes in the mouth.
Friday, February 27, 2015
Birders especially know that Cuba harbors hundreds of rarely seen, little-studied species. As the island nation opens to more U.S. visitors, scientists hope "green Cuba" can survive increased tourism.
Monday, February 23, 2015
Many coastal communities that harvest shellfish could soon be hurt by ocean acidification, a study finds. The Pacific Northwest and New England are hot spots, as are estuaries along the East Coast.