A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

Scientists have discovered a previously unknown strain of microbe after analyzing samples taken from China's Tiangong space ...

Common bedbugs experienced a dramatic jump in population size about 13,000 years ago, around the time humans congregated in the first cities.

Clostridium difficile is a Gram-positive spore-forming bacteria that is a normal component of the colon flora in humans. It can cause antibiotic-associated diarrhea (ADD) when competing bacteria ...

Clay Halton was a Business Editor at Investopedia and has been working in the finance publishing field for more than five years. He also writes and edits personal finance content, with a focus on ...

“In fact, the bacterium that causes the disease, Clostridium perfringens, is ever-present in the environment and the digestive tract of calves. The bacteria, C. perfringens Type C in nursing-age ...