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World's biggest bacterium found in Caribbean mangrove swamp

WASHINGTON (AP) — Scientists have discovered the world's largest bacterium in a Caribbean mangrove swamp. Most bacteria are microscopic, but this one is so big it can be seen with t...

Carbon emissions dip, at least briefly, in China, study says

WASHINGTON (AP) — China, the world’s top emitter of carbon dioxide that causes global warming, has seen a notable dip in its emissions over the past three quarters — but it’s not clear how long the dr...

World's largest plant is a vast seagrass meadow in Australia

WASHINGTON (AP) — Scientists have discovered the world's largest plant off the Australia coast — a seagrass meadow that has grown by repeatedly cloning itself. Genetic analysis has ...

Ukrainian scientists see working amid war as act of defiance

Anton Vlaschenko often hears shelling outside his office in Ukraine's second-largest city of Kharkiv, not far from the front lines of the war. He sometimes even sees smoke rising from Russian tanks hi...

Your dog's personality may have little to do with its breed

WASHINGTON (AP) — Research confirms what dog lovers know — every pup is truly an individual. Many of the popular stereotypes about the behavior of golden retrievers, poodles or schna...

One-fifth of reptiles worldwide face risk of extinction

WASHINGTON (AP) — Even the king cobra is “vulnerable.” More than 1 in 5 species of reptiles worldwide are threatened with extinction, according to a comprehensive new assessment of thousands of specie...

Program helps Congo families protect endangered gorillas

WASHINGTON (AP) — Decades of conservation efforts have stabilized the population of endangered mountain gorillas in eastern Africa. But the number of Grauer’s gorillas — a less furry, lower elevation-...

Dolphins' playful social habits form bonds, but spread virus

REEDVILLE, Virginia (AP) — Three young male dolphins simultaneously break the water’s surface to breathe — first exhaling, then inhaling — before slipping back under the waves of the Chesapeake Bay. ...

Scientists figure out how vampire bats got a taste for blood

WASHINGTON (AP) — Scientists have figured out why vampire bats are the only mammals that can survive on a diet of just blood. They compared the genome of common vampire bats to 26 ot...

Octopus ancestors lived before era of dinosaurs, study shows

WASHINGTON (AP) — Scientists have found the oldest known ancestor of octopuses – an approximately 330 million-year-old fossil unearthed in Montana. The researchers concluded the anc...

DNA analysis of elephant ivory reveals trafficking networks

WASHINGTON (AP) — As few as three major criminal groups are responsible for smuggling the vast majority of elephant ivory tusks out of Africa, according to a new study. Researchers u...

Fake poop helps evicted owls settle into new neighborhood

Settling into a new home can be tough for anyone. So scientists have come up with some tricks to make transplanted burrowing owls feel like they are not alone in their new digs, playing owl sounds and...

Fossil footprints puzzle scientists: Bear or ancient human?

WASHINGTON (AP) — Prehistoric footprints that have puzzled scientists since the 1970s are getting a second look: Were they left by extinct animals or by human ancestors? When famed ...

EXPLAINER: Why India has repeated air pollution problems

WASHINGTON (AP) — New Delhi struggles with pollution year-round, but the problem becomes acute during fall and winter months. On Wednesday, the concentration of tiny pollution particles was nearly 30 ...

China offers few new climate targets ahead of UN conference

WASHINGTON (AP) — China is offering no significant new goals for reducing climate-changing emissions ahead of the UN climate summit set to start next week in Glasgow. China, the wor...