Niwa says the reefs are rich with thriving plants and animals.

Japanese honeysuckle is beautiful and sweet-smelling, but deadly to native bush.

The dodo, pre-historic mammoth, and Irish elk also feature in sale.

DoC report says gene tech may offer 'breakthrough opportunities' - but with tricky issues.

Stretch the legs and learn something new on these informative trails for all ages

There are two distinct types of visitor. Should they be charged differently?

First look at the world's top wildlife photographic competition entries.

Sir David Attenborough has not appeared on location since 2011, until now.