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People
Dr Sue Walker

Technologies such as cryopreservation offer us a new, critical piece of the conservation puzzle


Scientists at Chester Zoo have started to freeze tissue samples of some of the world’s rarest animals as part of a project to save them from extinction.

Together with leading animal reproduction experts, the conservationists at Chester Zoo have founded Nature’s SAFE: “One of Europe’s largest living biobanks dedicated to preserving and regenerating cells of the planet’s most precious animals.”

This project sees tissue samples taken from the ovaries, testicles and ears of animals that have died at Chester Zoo and are cryogenically frozen and stored at -196°C using liquid nitrogen.

The idea is that in the future, when reproductive technologies are more advanced, the frozen samples may be used to generate sperm and eggs, helping conservationists to restore genetic diversity in animal species threatened with extinction and even clone new animals.

To date, the frozen living biobank has cryopreserved multiple cell types from more than 100 highly threatened animal species – these include the jaguar, the Javan green magpie and the critically endangered Eastern black rhino.

“Without Nature’s SAFE, for many species already so near the brink of extinction, there will be no return,” said Tullis Matson, chair and founder of Nature’s SAFE.

“With Nature’s SAFE and other biobanking partners, there is optimism. We know the sixth mass extinction on Earth is underway, and there will be rough times ahead. The question is what do we want to do about it? And our answer is: we want to secure future options for biodiversity, by acting now.”

Nature’s SAFE is now home to biological tissue samples of some of the planet’s most endangered species – providing an insurance policy for threatened wildlife.

Dr Sue Walker, head of science at Chester Zoo and co-founder of Nature’s SAFE, speaks to Attractions Management about the project.

Why is this project so important? 
Species all over the world face extinction: each day we are losing millions of years of evolution. Repaired environments will only succeed if we have genetically diverse networks of fauna to sustain them.

Nature’s SAFE is providing hope to halt and reverse species decline by indefinitely storing and regenerating reproductive cells and cell lines from tissue that would otherwise be disposed of.

With gene pools and animal populations continually shrinking in the wild, the work of modern conservation zoos like ours has never been more important. Technologies such as cryopreservation offer us a new, critical piece of the conservation puzzle and help us provide a safeguard for many of the world’s animals that, right now, we’re sadly on track to lose.

What excites you most about this project?
The most exciting part of this project is the optimism that it provides. Species conservation is challenging, there is no one quick-fix – it requires collaboration and innovation. As we restore and repair landscapes we must also act in parallel to deliver cutting edge scientific solutions to ensure genetic variation is not lost. Nature’s SAFE is an innovative tool in our conservation toolbox to ensure we store valuable genetic material after an individual animal dies.

What do you do with the tissue samples?
Samples supplied by zoos and cryopreserved by Nature’s SAFE samples are processed in a unique way that ensures their functional ability is retained during preservation. From reproductive cells to ovarian and testicular tissue, to skin samples, specimens preserved by Nature’s SAFE have true functional relevance to species conservation, providing a robust living biobank of multiple tissue types and cell specimens to assist in future species preservation.

What’s the biggest challenge of this project?
The greatest challenge for Nature’s SAFE is dealing with samples from such a huge variety of species – from rhinos to mountain chicken frogs. The diverse biology between species makes it technically challenging and that is where our scientific expertise take centre stage – developing new species specific methods and techniques. Additionally, safeguarding tissue samples is step one, the second is developing culture techniques to generate sperm and eggs from the preserved samples.

Why is it important for zoos to play a role in endangered species conservation?
Zoos are a unique conservation model – not only do they have a very important role in species conservation, with thousands of visitors a day, they can also empower generations to care for our natural world and act sustainably. Chester Zoo will continue to work with Nature’s SAFE over the next few years in its mission to save animals from extinction by collecting, indefinitely storing and regenerating reproductive cells and cell lines from endangered animal species.

Read more from this issue of Attractions Management magazine

View contents of Attractions Management 2022 issue 2
  • Editor's letter: Open for all
    We must listen to the communities we’re trying to serve if we’re going to make attractions inclusive for everyone, says Magali Robathan
  • People: Nicolas de Villiers
    The head of Puy du Fou on taking on America
  • People: Dr Sue Walker
    Chester Zoo’s head of science on a project aiming to save animals from extinction
  • People: Danny Burzlaff
    On AR, VR, world-building, avatar creation and the metaverse
  • Interview: Chris Mather
    As the Gretna Green Experience opens in Scotland, Mather & Co’s CEO shares the highs and lows of almost three decades in exhibition design
  • Waterparks: Down to earth
    The world’s first ‘living waterslides’, a hydroponic farm, rooftop beehives and more than 1,500 trees – all part of the Therme Manchester next generation waterpark’s aims to be as green as possible
  • Museums: Gardens of the future
    Dubai’s new Museum of the Future has opened with a bang. We look at how the innovative landscaping aims to support the museum’s message
  • Technology: A whole new world
    The metaverse is coming, and the attractions industry needs to pay attention. Lesley Morisetti explores the challenges and opportunities
  • Talking point: Neurodiversity and attractions
    How can museums and attractions ensure they are as welcoming as possible for visitors with sensory needs? The experts share their tips
  • Immersive art: In the picture
    Van Gogh: The Immersive Experience is part of a massive trend promising to offer new perspectives on art and artists
  • Awards: Museums & Heritage Awards
    As the Oscars of the museum world celebrate the best, brightest and most creative, we take a look at this year’s winners
  • Tourism: The winds of change
    Attractions providers not willing to take risks and get truly creative will get left behind, says Dr Terry Stevens. Here’s how to stay ahead of the curve
  • Research: A sustainable future
    Research shows that consumers want attractions to get greener, faster, and they’re actively pushing for change. BVA BDRC’s Jon Young talks us through the numbers
Conservationists at Chester Zoo have helped launch Nature’s SAFE
Conservationists at Chester Zoo have helped launch Nature’s SAFE / Photo: Chester Zoo
Amazon milk frogs are threatened by deforestation
Amazon milk frogs are threatened by deforestation / Photo: Chester Zoo
Visitors admiring a Sumatran orangutan at Chester Zoo
Visitors admiring a Sumatran orangutan at Chester Zoo / Photo: Chester Zoo
Chester Zoo’s Monsoon Forest reopened in 2020
Chester Zoo’s Monsoon Forest reopened in 2020 / Photo: Chester Zoo
Wild humboldt penguins are classed as ‘vulnerable’
Wild humboldt penguins are classed as ‘vulnerable’ / Photo: Chester Zoo
COMPANY PROFILES
TechnoAlpin Indoor

TechnoAlpin is the world leader for snowmaking systems. With the Indoor snow division, TechnoAlpin c [more...]
Taylor Made Designs

Founded in 1993, Taylor Made Designs supply corporate clothing and brand-enhancing merchandise to [more...]
Polin Waterparks

Polin was founded in Istanbul in 1976. Polin has since grown into a leading company in the waterpa [more...]
Simworx Ltd

The company was initially established in 1997. Terry Monkton and Andrew Roberts are the key stakeh [more...]
+ More profiles  
CATALOGUE GALLERY
 

+ More catalogues  
DIRECTORY
+ More directory  
DIARY

 

23-26 Aug 2026

Elevate Spa Riviera Maya Edition

The Riviera Maya Edition Kanai, Playa del Carmen, Mexico
29 Sep - 02 Oct 2026

Synergy - The Retreat Show

Pical Resort, Valamar Collection, Porec, Croatia
+ More diary  
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Jobs    News   Products   Magazine   Subscribe
People
Dr Sue Walker

Technologies such as cryopreservation offer us a new, critical piece of the conservation puzzle


Scientists at Chester Zoo have started to freeze tissue samples of some of the world’s rarest animals as part of a project to save them from extinction.

Together with leading animal reproduction experts, the conservationists at Chester Zoo have founded Nature’s SAFE: “One of Europe’s largest living biobanks dedicated to preserving and regenerating cells of the planet’s most precious animals.”

This project sees tissue samples taken from the ovaries, testicles and ears of animals that have died at Chester Zoo and are cryogenically frozen and stored at -196°C using liquid nitrogen.

The idea is that in the future, when reproductive technologies are more advanced, the frozen samples may be used to generate sperm and eggs, helping conservationists to restore genetic diversity in animal species threatened with extinction and even clone new animals.

To date, the frozen living biobank has cryopreserved multiple cell types from more than 100 highly threatened animal species – these include the jaguar, the Javan green magpie and the critically endangered Eastern black rhino.

“Without Nature’s SAFE, for many species already so near the brink of extinction, there will be no return,” said Tullis Matson, chair and founder of Nature’s SAFE.

“With Nature’s SAFE and other biobanking partners, there is optimism. We know the sixth mass extinction on Earth is underway, and there will be rough times ahead. The question is what do we want to do about it? And our answer is: we want to secure future options for biodiversity, by acting now.”

Nature’s SAFE is now home to biological tissue samples of some of the planet’s most endangered species – providing an insurance policy for threatened wildlife.

Dr Sue Walker, head of science at Chester Zoo and co-founder of Nature’s SAFE, speaks to Attractions Management about the project.

Why is this project so important? 
Species all over the world face extinction: each day we are losing millions of years of evolution. Repaired environments will only succeed if we have genetically diverse networks of fauna to sustain them.

Nature’s SAFE is providing hope to halt and reverse species decline by indefinitely storing and regenerating reproductive cells and cell lines from tissue that would otherwise be disposed of.

With gene pools and animal populations continually shrinking in the wild, the work of modern conservation zoos like ours has never been more important. Technologies such as cryopreservation offer us a new, critical piece of the conservation puzzle and help us provide a safeguard for many of the world’s animals that, right now, we’re sadly on track to lose.

What excites you most about this project?
The most exciting part of this project is the optimism that it provides. Species conservation is challenging, there is no one quick-fix – it requires collaboration and innovation. As we restore and repair landscapes we must also act in parallel to deliver cutting edge scientific solutions to ensure genetic variation is not lost. Nature’s SAFE is an innovative tool in our conservation toolbox to ensure we store valuable genetic material after an individual animal dies.

What do you do with the tissue samples?
Samples supplied by zoos and cryopreserved by Nature’s SAFE samples are processed in a unique way that ensures their functional ability is retained during preservation. From reproductive cells to ovarian and testicular tissue, to skin samples, specimens preserved by Nature’s SAFE have true functional relevance to species conservation, providing a robust living biobank of multiple tissue types and cell specimens to assist in future species preservation.

What’s the biggest challenge of this project?
The greatest challenge for Nature’s SAFE is dealing with samples from such a huge variety of species – from rhinos to mountain chicken frogs. The diverse biology between species makes it technically challenging and that is where our scientific expertise take centre stage – developing new species specific methods and techniques. Additionally, safeguarding tissue samples is step one, the second is developing culture techniques to generate sperm and eggs from the preserved samples.

Why is it important for zoos to play a role in endangered species conservation?
Zoos are a unique conservation model – not only do they have a very important role in species conservation, with thousands of visitors a day, they can also empower generations to care for our natural world and act sustainably. Chester Zoo will continue to work with Nature’s SAFE over the next few years in its mission to save animals from extinction by collecting, indefinitely storing and regenerating reproductive cells and cell lines from endangered animal species.

Read more from this issue of Attractions Management magazine

View contents of Attractions Management 2022 issue 2
  • Editor's letter: Open for all
    We must listen to the communities we’re trying to serve if we’re going to make attractions inclusive for everyone, says Magali Robathan
  • People: Nicolas de Villiers
    The head of Puy du Fou on taking on America
  • People: Dr Sue Walker
    Chester Zoo’s head of science on a project aiming to save animals from extinction
  • People: Danny Burzlaff
    On AR, VR, world-building, avatar creation and the metaverse
  • Interview: Chris Mather
    As the Gretna Green Experience opens in Scotland, Mather & Co’s CEO shares the highs and lows of almost three decades in exhibition design
  • Waterparks: Down to earth
    The world’s first ‘living waterslides’, a hydroponic farm, rooftop beehives and more than 1,500 trees – all part of the Therme Manchester next generation waterpark’s aims to be as green as possible
  • Museums: Gardens of the future
    Dubai’s new Museum of the Future has opened with a bang. We look at how the innovative landscaping aims to support the museum’s message
  • Technology: A whole new world
    The metaverse is coming, and the attractions industry needs to pay attention. Lesley Morisetti explores the challenges and opportunities
  • Talking point: Neurodiversity and attractions
    How can museums and attractions ensure they are as welcoming as possible for visitors with sensory needs? The experts share their tips
  • Immersive art: In the picture
    Van Gogh: The Immersive Experience is part of a massive trend promising to offer new perspectives on art and artists
  • Awards: Museums & Heritage Awards
    As the Oscars of the museum world celebrate the best, brightest and most creative, we take a look at this year’s winners
  • Tourism: The winds of change
    Attractions providers not willing to take risks and get truly creative will get left behind, says Dr Terry Stevens. Here’s how to stay ahead of the curve
  • Research: A sustainable future
    Research shows that consumers want attractions to get greener, faster, and they’re actively pushing for change. BVA BDRC’s Jon Young talks us through the numbers
Conservationists at Chester Zoo have helped launch Nature’s SAFE
Conservationists at Chester Zoo have helped launch Nature’s SAFE / Photo: Chester Zoo
Amazon milk frogs are threatened by deforestation
Amazon milk frogs are threatened by deforestation / Photo: Chester Zoo
Visitors admiring a Sumatran orangutan at Chester Zoo
Visitors admiring a Sumatran orangutan at Chester Zoo / Photo: Chester Zoo
Chester Zoo’s Monsoon Forest reopened in 2020
Chester Zoo’s Monsoon Forest reopened in 2020 / Photo: Chester Zoo
Wild humboldt penguins are classed as ‘vulnerable’
Wild humboldt penguins are classed as ‘vulnerable’ / Photo: Chester Zoo
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Therme Manchester reveals 90:90 strategy – 90 per cent of the UK population within a 90-minute drive of a Therme
Therme Manchester’s 28-acre development, which will include interconnected glass pavilions that measure 65,000sq m, will be the largest bathing and wellbeing attraction in the world once complete, according to prof David Russell, CEO of Therme UK. 
Efteling expands family offer with new Hooghmoed drop tower
Efteling has opened Hooghmoed, a new family drop tower designed to broaden the appeal of its recently launched Sirene Island themed area and introduce younger visitors to thrill attractions.
Universal and Puy du Fou projects point to rise of Oxford–Cambridge corridor
A proposed Puy du Fou development near Bicester and Universal Destinations and Experiences’ planned resort in Bedford are emerging as part of a wider transformation of the Oxford– Cambridge Growth Corridor into a major centre for UK leisure and tourism inv
Shedd Aquarium upgrades its visitor experience with new Immersion Theater
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+ More news   
 
COMPANY PROFILES
TechnoAlpin Indoor

TechnoAlpin is the world leader for snowmaking systems. With the Indoor snow division, TechnoAlpin c [more...]
Taylor Made Designs

Founded in 1993, Taylor Made Designs supply corporate clothing and brand-enhancing merchandise to [more...]
Polin Waterparks

Polin was founded in Istanbul in 1976. Polin has since grown into a leading company in the waterpa [more...]
Simworx Ltd

The company was initially established in 1997. Terry Monkton and Andrew Roberts are the key stakeh [more...]
+ More profiles  
CATALOGUE GALLERY
+ More catalogues  
DIRECTORY
+ More directory  
DIARY

 

23-26 Aug 2026

Elevate Spa Riviera Maya Edition

The Riviera Maya Edition Kanai, Playa del Carmen, Mexico
29 Sep - 02 Oct 2026

Synergy - The Retreat Show

Pical Resort, Valamar Collection, Porec, Croatia
+ More diary  
 


ADVERTISE . CONTACT US

Leisure Media
Tel: +44 (0)1462 431385

©Cybertrek 2026

ABOUT LEISURE MEDIA
LEISURE MEDIA MAGAZINES
LEISURE MEDIA HANDBOOKS
LEISURE MEDIA WEBSITES
LEISURE MEDIA PRODUCT SEARCH
ATTRACTIONS MANAGEMENT NEWS
ATTRACTIONS HANDBOOK
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