Biology

Cheryl Hayashi uses a microscope to work on a spider in her lab at the American Museum of Natural History in New York. Hayashi has collected spider silk glands of about 50 species, just a small dent in the more than 48,000 spider species known worldwide. (AP Photo/Jeremy Rehm)
August 14, 2019 - 9:11 am
NEW YORK (AP) — With two pairs of fine-tipped tweezers and the hands of a surgeon, Cheryl Hayashi began dissecting the body of a silver garden spider under her microscope. In just a few minutes she found what she was seeking: hundreds of silk glands, the organs spiders use to make their webs. Some...
Read More
FILE - In this Feb. 1, 2016 file photo, a bald eagle takes flight at the Museum of the Shenandaoh Valley in Winchester, Va. While once-endangered bald eagles are booming again in the Chesapeake Bay, the overall trajectory of endangered species and the federal act that protects them isn't so clearcut. (Scott Mason/The Winchester Star via AP, File)
August 12, 2019 - 10:20 am
WASHINGTON (AP) — The Trump administration on Monday rolled out some of the broadest changes in decades to enforcement of the landmark Endangered Species Act, allowing the government to put an economic cost on saving a species and other changes critics contend could speed extinction for some...
Read More
FILE - In this July 25, 2019, file photo, the sun sets in Cuggiono near Milan, Italy. A new U.N. report on warming and land use says climate change is hitting us where it counts: the stomach. The scientific report on Thursday, Aug. 8, finds that as the world warms it degrades the land more. (AP Photo/Luca Bruno, File)
August 08, 2019 - 2:31 am
WASHINGTON (AP) — The Latest on a new United Nations report on climate change (all times local): 11:30 a.m. A new United Nations science report on climate change says cutting down trees is making the world hotter and hungrier. Although the report doesn't pinpoint any country, scientists, when asked...
Read More
July 26, 2019 - 9:21 am
LAS VEGAS (AP) — A migration of mild-mannered grasshoppers sweeping through the Las Vegas area is being attributed to wet weather several months ago. Nevada state entomologist Jeff Knight told reporters on Thursday the number of adult pallid-winged grasshoppers traveling north to central Nevada is...
Read More
July 25, 2019 - 3:06 pm
CAPE CANAVERAL, Florida (AP) — A space capsule carrying a 3D printer to make human tissue and about 5,000 pounds of other experiments and supplies is on its way to the International Space Station after a thunderous SpaceX launch. The private company's Falcon 9 rocket dodged threatening clouds in...
Read More
In this July 23, 2019 photo, Jim Andrews, a University of Vermont herpetology lecturer, holds a young northern leopard frog in Salisbury, Vt. A wet spring has resulted in a 100-fold increase in the population of the particular frog in a region of Vermont. (AP Photo/Lisa Rathke)
July 25, 2019 - 10:16 am
SALISBURY, Vt. (AP) — A wet spring has caused one frog population to explode in an area of Vermont where throngs of the amphibians have been hopping through fields and lawns, darting across roads and getting flattened by cars and tractors. University of Vermont herpetology lecturer James Andrews...
Read More
FILE - This April 12, 2018 file photo shows the eye of a woman in New York. Patients are about to be enrolled in the first study to test gene editing inside the body to try to cure an inherited form of blindness. People with the disease have healthy eyes but lack a gene that converts light into signals to the brain that enable sight. (AP Photo/Patrick Sison, File)
July 25, 2019 - 7:28 am
Patients are about to be enrolled in the first study to test a gene-editing technique known as CRISPR inside the body to try to cure an inherited form of blindness. People with the disease have normal eyes but lack a gene that converts light into signals to the brain that enable sight. The...
Read More
FILE - This undated image provided by National Oceanic Atmospheric Administration National Marine Fisheries Service Southeast Fisheries Science Center shows a 5.5-inch long rare pocket shark. A pocket-sized pocket shark found in the Gulf of Mexico has turned out to be a new species, and one that squirts little glowing clouds into the ocean. Researchers from around the Gulf and in New York have named it the American pocket shark, or Mollisquama (mah-lihs-KWAH-muh) mississippiensis (MISS-ih-SIP-ee-EHN-sis). (Mark Grace/National Oceanic Atmospheric Administration National Marine Fisheries Service Southeast Fisheries Science Center via AP, File)
July 19, 2019 - 2:41 pm
NEW ORLEANS (AP) — A pocket-sized pocket shark found in the Gulf of Mexico has turned out to be a new species. And the mysterious pouches that it's named for, up near its front fins? Scientists say they squirt little glowing clouds into the ocean. Researchers from around the Gulf and in New York...
Read More
FILE - In this Thursday, Sept. 27, 2018 file photo, an elderly couple walks past the Berlaymont building, the European Commission headquarters, in Brussels. Research released on Sunday, July 14, 2019 suggests that a healthy lifestyle can cut the risk of developing Alzheimer's even if you've inherited genes that raise your risk for the mind-destroying disease. (AP Photo/Francisco Seco, File)
July 14, 2019 - 9:35 am
LOS ANGELES (AP) — A healthy lifestyle can cut your risk of developing Alzheimer's or other forms of dementia even if you have genes that raise your risk for these mind-destroying diseases, a large study has found. People with high genetic risk and poor health habits were about three times more...
Read More
In this photo provided by Kevin Bryant, a dominant male bluehead wrasse, upper left, defends its spawning territory and a group of females, yellow, off the coast of Florida. Normally the male and females stay as they are, feeding together and occasionally mating. But if a predator happens to snatch up the lead male, the dominant female in the group will take up rank _ by becoming a male. (Kevin Bryant via AP)
July 10, 2019 - 11:03 am
NEW YORK (AP) — New Zealand researchers are offering the first detailed view of the molecular machinery that allows some fish to change their sex. Roughly 500 types of fish can switch between male and female as adults when circumstances call for it. The study published Wednesday examined a tropical...
Read More

Pages