Women influenced coevolution of dogs and humans

Credit: CC0 Public Domain Man’s best friend might actually belong to a woman. In a cross-cultural analysis, Washington State University researchers found several factors may have played a role in building the mutually beneficial relationship between humans and dogs, including temperature, hunting and surprisingly—gender. “We found that dogs’ relationships with women might have had a […]

Parasite found in cat poop linked to higher brain cancer risk in humans

Here’s another reason to cook your meat and take care around cat litter: The parasite Toxoplasma gondii, which reproduces in cats and most often spreads to humans through raw meat, may increase the risk of brain cancer in humans, a new study suggests. The researchers found a link between the presence of T. gondii antibodies […]

Newborn megalodon sharks were larger than most adult humans

megalodon shark jaws

“Baby shark” has taken on a whole new meaning. Newborn megalodon sharks were supersized fish larger than most adult humans, a new study suggests. An analysis of the growth rates of the ancient ocean predators, which lived between about 23 million and 2.5 million years ago, estimates that the sharks started life at about 2 […]

What if humans had photosynthetic skin?

The series “Imaginary Earths” speculates what the world might be like if one key aspect of life changed, whether related to the planet or humanity. Green skin is common in science fiction, from little green men to Hera Syndulla from “Star Wars Rebels” to Gamora from “Guardians of the Galaxy.” But what if green skin […]

Humans are destroying our ‘perfect planet,’ Attenborough says

Powerful natural forces on our planet and in our solar system work together to sculpt and support life on our fragile pale blue dot.  A new five-part series called “A Perfect Planet,” narrated by the legendary Sir David Attenborough, explores how these natural forces have worked together to make life possible — and how a […]

The team will gather information in Africa on zoonotic diseases that can jump from animals to humans, like COVID-19 and HIV — ScienceDaily

A University of Arkansas biologist is part of a global team of researchers developing a strategy to detect and intercept diseases emerging from wildlife in Africa that could eventually infect humans. Assistant professor Kristian Forbes, along with colleagues from Africa, Europe and North America, have proposed a four-part approach to detect and contain zoonotic diseases, […]