Hundreds of scientists are helping Brazil's giant agricultural sector prepare for the effects of climate change and anticipate pests that hit neighboring countries.

Spearheading the effort is the Brazilian Agriculture Research Corporation (Embrapa), a state agency tasked with developing and extending technology to support sustainable farming.

Five endangered turtles have been born in New York City, a first for a North American zoo.

The Chinese big-headed turtles were born in November at the Prospect Park Zoo in Brooklyn. The Wildlife Conservation Society says it's the first time the species has successfully reproduced at a zoo accredited by the Association of Zoos and Aquariums.

The hot molten rock beneath Yellowstone National Park is 2 ½ times larger than previously estimated, meaning the park's supervolcano has the potential to erupt with a force about 2,000 times the size of Mount St. Helens, according to a new study.

By measuring seismic waves from earthquakes, scientists were able to map the magma chamber underneath the Yellowstone caldera as 55 miles (88.5 kilometers) long, lead author Jamie Farrell of the University of Utah said Monday.

The mountain of refrigerators, cellphones, TV sets and other electrical waste disposed of annually worldwide is forecast to grow by a third by 2017, according to a U.N. study released Sunday.

E-waste — defined as anything with a battery or a cord — can pose a big problem because it often contains substances that are harmful to humans and the environment if not properly treated. On the other hand, some of it can be profitably recycled.

Conservation group Sea Shepherd Australia said Monday it was preparing for increased aggression from Japanese whalers in its annual campaign to stop the slaughter of the giant animals off Antarctica.

Three Sea Shepherd boats are due to leave from Melbourne and Hobart within days to harass and deter the Japanese harpoon ships which hunt minke, fin and humpback whales in the southern hemisphere summer.

China's Jade Rabbit rover sent back its first pictures from the moon, as state media on Monday lauded the first lunar soft landing in nearly four decades as a step forward for the "well-being" of the world.

The images released by China's official news agency Xinhua show the lander, covered in golden foil, standing in the Sinus Iridum or Bay of Rainbows, its solar panels open to generate power.

A space module carrying China's first lunar rover landed on the moon Saturday, state television said, the first soft landing on the moon in nearly four decades and a major step for Beijing's ambitious space program.

Scientists burst into applause as a computer generated image representing the spacecraft was seen landing on the moon's surface via screens at a Beijing control center, state broadcaster China Central Television (CCTV) showed, 12 days after Chang'e-3 blasted off on a Long March-3B carrier rocket.

Scientists said Friday they have discovered a cave on the Indonesian island of Sumatra that provides a "stunning" record of Indian Ocean tsunamis over thousands of years.

They say layers of tsunami-borne sediments found in the cave in northwest Sumatra suggest the biggest destructive waves do not occur at set intervals -- meaning communities in the area should be prepared at all times for a tsunami.

Iran's president said Saturday that the Islamic Republic has successfully sent a monkey into space for the second time, part of a program aimed at manned space flight.

Hassan Rouhani's website president.ir said that the launch of the rocket dubbed Pajohesh, or Research in Farsi, was Iran's first use of liquid fuel. It said the monkey, named Fargam or Auspicious, was returned to earth safely.

China will attempt to land a probe carrying the country's first lunar rover on the moon Saturday in a major breakthrough for its ambitious space program.

The spacecraft is expected to make touchdown at 9:40 pm (1340 GMT), state broadcaster China Central Television (CCTV) said, 12 days after the Chang'e-3 mission blasted off on a Long March-3B carrier rocket.