Science & Environment

By Kate Evans: Humans have been puzzling over the mysteries of animal migration and navigation for centuries. Audio

You might find this tiny critter in a kowhai tree near you. The hobbit psyllid takes its scientific name from Frodo Baggins as both are smaller than their relations. It's also found in the South… Audio

The eruption of Tonga's Hunga Tonga-Hunga Ha'apai early last year chewed up about 5-percent of ozone over the tropical south-western Pacific and Indian Ocean.

The volcanic plume, which reached… Audio

A Department of Conservation decision could result in the deaths of up to forty-six species - including kiwi - during the construction of the Mt Messenger bypass in Taranaki, an environmental charity… Audio

Red deer run rampant across the high country in New Zealand, causing extensive environmental damage. A 50-year effort to control the invasive animal gets underway. Audio

Bacteria and viruses are very different, but what about when they interact? Phage biocontrols are viruses that attack specific bacteria in an organism. Dr Heather Hendrikson talks to Jesse about… Audio

Could dung beetles be the solution for farmers managing freshwater on their property? Dr Shaun Forgie is driving a push for change.  Audio

One of the country's Great Walks - the 82-kilometre Heaphy Track, in the West Coast's Kahurangi National Park - is fully reopening on Thursday.

It's been more than a year-and-a-half since a storm… Audio

In the ever-shifting streams and channels of a braided river, creatures must adapt to change. Claire Concannon joins a researcher on the spectacular Cass River near Tekapo for a spot of electrofishing… Video, Audio

A US water warrior immortalised by Hollywood has told a New Zealand crowd that water problems are getting much worse. But Erin Brockovich's message to a Water NZ industry conference today is that… Audio

In braided rivers, shifting gravel and weaving water channels make for a complex and dynamic environment. But it's a habitat some species have adapted to – native fish like kōaro, and unique birds… Audio

Musicians of a feather flock together, especially if they're writing bird music. Our Bookmarks guest today is Adrian Thornton, whose band is playing a gig for the Hawkes Bay Arts festival this Friday… Audio