Iguanas rafted more than 8,000 km from North America to Fiji New genetics support the theory that iguanas voyaged to Fiji on ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Meta-analysis: This type of study involves using statistics to combine the data from multiple previous studies to ...

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 ...

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 ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Meta-analysis: This type of study involves using statistics to combine the data from multiple previous studies to ...

Not peer-reviewed: This work has not been scrutinised by independent experts, or the story does not contain research data to review (for example an opinion piece).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. Experimental study: At least one thing in the experiment was changed to see if it had an impact on the subjects ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Marine scientists are calling for beachgoers who find weedy seadragons washed up on the shore to photograph them ...

Peer-reviewed: This work was reviewed and scrutinised by relevant independent experts. Meta-analysis: This type of study involves using statistics to combine the data from multiple previous studies to ...