Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Female bonobos tend to have more power in their communities than females in most social mammal species, and ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Systematic review: This type of study is a structured approach to reviewing all the evidence to answer a specific ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Pesticides used to protect crops from insects can kill freshwater critters and affect the ecosystems they belong ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. A skeleton from Roman-era England appears to have been bitten by a big cat, possibly a lion, suggesting the pour ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Observational study: A study in which the subject is observed to see if there is a relationship between two or ...

Not peer-reviewed: This work has not been scrutinised by independent experts, or the story does not contain research data to review (for example an opinion piece). If you are reporting on research ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Ancient giant kangaroos stayed close to home and went extinct when climate change caused that home to disappear, ...