Human activities are destroying the natural world, leading to the extinction of animal and plant species at a terrifying rate.

Our actions threaten over one million species. And in New Zealand we have the highest proportion of threatened native species in the world, with more than 4000 at risk.

Some experts believe we are in the throes of the sixth mass extinction. In This Is How It Ends, a seven-part Stuff documentary series, Andrea Vance and Iain McGregor investigate the biodiversity crisis.

Some of the smallest endangered species are ringing alarm bells about the health of the planet.

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WATCH EPISODE FOUR:
ALL CREATURES GREAT AND SMALL

Hit play on the video to learn why it's critical we don't lose some of our smallest, most invisible creatures.

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Archey’s frogs are one of four surviving native frog species.

Archey’s frogs are one of four surviving native frog species.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

Item 1 of 3

Archey’s frogs are one of four surviving native frog species.

Archey’s frogs are one of four surviving native frog species.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

Archey’s frogs are one of four surviving native frog species.

Archey’s frogs are one of four surviving native frog species.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

Item 1 of 3

Archey’s frogs are one of four surviving native frog species.

Archey’s frogs are one of four surviving native frog species.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Wētāpunga are one of over 70 species of wētā unique to New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

They are functionally extinct being in captivity. They're alive but not alive.
Kath Walker, Department of Conservation

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Harp traps harmlessly catch bats for monitoring and health checks.

Harp traps harmlessly catch bats for monitoring and health checks.

New Zealand’s native bats can fly at speeds of 40-60kmh.

New Zealand’s native bats can fly at speeds of 40-60kmh.

Long-tailed bats weigh only 8-10g.

Long-tailed bats weigh only 8-10g.

Long-tailed bats fly along the forest edge looking for insects to snack on.

Long-tailed bats fly along the forest edge looking for insects to snack on.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

Item 1 of 6

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Harp traps harmlessly catch bats for monitoring and health checks.

Harp traps harmlessly catch bats for monitoring and health checks.

New Zealand’s native bats can fly at speeds of 40-60kmh.

New Zealand’s native bats can fly at speeds of 40-60kmh.

Long-tailed bats weigh only 8-10g.

Long-tailed bats weigh only 8-10g.

Long-tailed bats fly along the forest edge looking for insects to snack on.

Long-tailed bats fly along the forest edge looking for insects to snack on.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Harp traps harmlessly catch bats for monitoring and health checks.

Harp traps harmlessly catch bats for monitoring and health checks.

New Zealand’s native bats can fly at speeds of 40-60kmh.

New Zealand’s native bats can fly at speeds of 40-60kmh.

Long-tailed bats fly along the forest edge looking for insects to snack on.

Long-tailed bats fly along the forest edge looking for insects to snack on.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

Long-tailed bats weigh only 8-10g.

Long-tailed bats weigh only 8-10g.

Item 1 of 6

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Colin O’Donnell, Principal science advisor for DOC, transports bats in cloth bags as day breaks.

Harp traps harmlessly catch bats for monitoring and health checks.

Harp traps harmlessly catch bats for monitoring and health checks.

New Zealand’s native bats can fly at speeds of 40-60kmh.

New Zealand’s native bats can fly at speeds of 40-60kmh.

Long-tailed bats fly along the forest edge looking for insects to snack on.

Long-tailed bats fly along the forest edge looking for insects to snack on.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

A long-tailed bat flies through Fiordland’s Eglinton Valley at sunset.

Long-tailed bats weigh only 8-10g.

Long-tailed bats weigh only 8-10g.

OTHER EPISODES

Episode 1

Seabirds

Watch
now

Episode 2

Native Birds

Watch
now

Episode 3

Oceans

Watch
now

Episode 5

Fresh Water

Available
Oct 26
Watch
now

Episode 6

The Endangered Forest

Available
Oct 27
Watch
now

Episode 7

The Islands

Available
Oct 28
Watch
now
Written, filmed, produced and directed by Iain McGregor and Andrea Vance
With extra special thanks to Herb Christophers, Colin O’Donnell and Kath Walker, Department of Conservation and Barry Walker, Bathurst Resources
With thanks to Lou Sanson, Lisa Flanagan, Department of Conservation; Kevin Hague, Forest & Bird; Richard Gibson, Auckland Zoo; Phil Johnson, Toby Longbottom and Paula Penfold, Stuff Circuit
Additional footage supplied by Department of Conservation; Solid Energy
Title animation Ella Bates-Hermans
Design and layout Aaron Wood and Sungmi Kim
Development Sungmi Kim
Editor John Hartevelt
Executive editor and producer Bernadette Courtney
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