Scientists use statistics to differentiate African dolphin 'dialects'

Understanding how and when animal species use their environment is a fundamental ecological question and one that can be surprisingly difficult to answer, particularly when working in the marine environment.

Alien invasion - the threat is real

Dr Katelyn Faulkner and Prof Mark Robertson, from the Centre for Invasion Biology at the University of Pretoria, looked at the risks posed by alien species transported as stowaways on ships traveling to South Africa.

Nursing: A caring profession that has stood the test of time

As the single largest group of healthcare professionals, with a presence in all settings, nurses can have an enormous impact on the resilience of health systems.