Genetic diversity is the biological variation that occurs within species. It makes it possible for species to adapt when the environment changes and/or supports disease resistance.

A genetic marker is a DNA sequence with a known physical location on a chromosome. Genetic markers can help us test for genetic changes, sometimes called mutations or variants, in your DNA. 

The complete set of DNA (genetic material) in an organism. 

Connected to the body - something that can be seen or touched.

A reference genome is an DNA sequence database, that represents an example set of genes for a species.

RZSS is the abbreviation for the Royal Zoological Society of Scotland. RZSS is  a wildlife conservation charity with a bold vision: a world where nature is protected, valued and loved. You can find out more about our work on our website.

Individuals of a species not found in their established range, in this context we are talking about Northern Rockhopper Penguins found outwith the south Atlantic islands of Tristan da Cunha and Indian Ocean islands of St Paul and Amsterdam.