Dr Christina N. Zdenek, BSc., MPhil, PhD

My vision is to use science and communication to improve the relationship between humans and wildlife. Toward this end, I have conceived and delivered many large conservation projects to successful completion: Palm Cockatoo Project (6 papers published), Death Adder Project (1 paper published; 1 in preparation), Sound Garden Project (how snakes respond to airborne sounds; 1 paper published; 779M people reached), and the Save the Palm Cockatoo Project (1st of 2 field seasons successfully completed in Sept.’24). Two more projects are currently ongoing: 'Under the Snakefluence' (how people perceive snakes and how to improve this perception; strictly-vetted collaborators across 20 countries) and ‘Beyond the Bite: Quantifying the extent of the human-snake conflict in Australia.’

 

My passion and commitment to scicomm is deep and enduring: I was ABC's Top Five Scientist in 2021; am 1 of 3 Inspiring Australia's ambassadors for Qld in 2024; am the sole ambassador for Inspiring Australia Qld in 2025; I have conceived and delivered a scicomm workshop to multiple conferences and groups, nationally and internationally; I am the Communications Lead for IUCN's Snake Specialist Group, as well as for the Australian Reptile Academy. 

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I am currently (9Jan'25) open to full-time work from mid-March but can be available earlier for the right role.

 

I am currently serve in several roles:

1) an Associate Researcher with the Cairns-based non-profit, People For Wildlife (PFW) (part-time, seasonal), where we're working together to try and save the endangered Palm Cockatoo

2) Co-owner, Instructor, and Communications Officer for the Australian Reptile Academy (weekends, ongoing), where we train people on the safe and ethical handling of Australia's highly venomous (and very fast) snakes, and

3) Ambassador for Inspiring Australia Queensland (2024 and 2025).

 

With more than 17 years in field-based roles (Palm Cockatoos, Death Adders, koalas, sea snakes, Macaws, and Little Penguins) and 8 years in lab-based roles, my inter-disciplinary research has traversed parrot vocalisations to animal cognition, conservation biology, snake venom activity, antivenom efficacy, snake ecology, snake behaviour, and the human-snake conflict. I have devoted 15 years to working with Indigenous groups on Cape York Peninsula to save Australia’s only tool-using parrot, the Palm Cockatoo, whereby Prof. Rob Heinsohn and I successfully raised its conservation status twice.

 

My work on the human-snake conflict began in 2010 and has ranged from public education (e.g. travelling snake shows) to scientific fieldwork and pre-clinical antivenom testing. From 2009–2014 I was the seasonal Team Leader for The #PalmCockatooProject with Professor Rob Heinsohn at The Australian National University. From 2010-2016, I seasonally worked as a venomous-snake education demonstrator, educating the Australian public on best practices, identification, and first aid regarding snakes. I am now running the world's largest human-wildlife conflict survey, spanning 47 countries. My ultimate purpose is to use science to promote a better world, for humans and for wildlife. 

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I was recently a postdoctoral researcher for the Celine Frere Research Group at The University of Queensland, delivering cost-effective wildlife monitoring services (using airborne eDNA!), novel gut microbiome analyses, and important wildlife conservation outcomes. Prior to that, I worked as as a toxinologist investigating venom (mostly from snakes) and antivenom efficacy for 7 years (4 of which as a Lab Manager), also at UQ.

 

I'm currently an expert member of IUCN's Snake Specialist Group (by invitation only) and an Advisory Member for https://savethesnakes.org/.

 

Some projects I have conceived and run to successful completion:

#PalmCockatooProject (palmy conservation, ongoing; papers here), 

#DeathAdderProject (Death Adder ecology; papers here),

#SoundGardenProject ('How do snakes respond to airborne sound?'; paper here),

#CockyCognition Project (bird vocalisations, bird cognition; info here),

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Publications and awards:

I have published 60 scientific publications (and 3 short letters in Science) (as of Jan. 2025), am a Fulbright Fellow alumna, the Rising Star for the Faculty of Science at the Uni of Queensland (2024), a National Geographic Young Explorer (2018), an #ABCTop5 Science recipient (2021), 1 of 3 Queenslanders chosen as Inspiring Australia Queensland's (IAQ) ambassador for STEM education (2023), and the sole Queenslander chosen at IAQ for 2025. My work regularly appears in the media. 

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Research Impacts:

Having conferred my PhD in May 2020, I have published 60 papers (as of Jan. 2025) across various disciplines (e.g. toxinology, animal behaviour, ecology), making significant impact in each field. Some examples: Toxinology: I tested a new snakebite therapeutic drug, with 6 of my papers used as supporting evidence in the successful application to the US FDA to progress the drug to phase II human clinical trials (pers. comm., Dr Lewin, Ophirex). We (Jackson et al 2016) revealed the world’s first example of ontogenetic venom change in an elapid (Family Elapidae) snake species, subsequently garnering 65 citations, illustrating its significant advancement of this field. Animal behaviour: my Zdenek et al 2023 paper demonstrated that snakes alter their behaviour in response to airborne sounds, questioning the long-standing misconception that snakes are deaf. Impacts of this paper are ongoing due to it being so new, but so far the Altimetrics score is 1122 (top 5%), and the paper has been viewed 8,234 times. It is a perfect precursor to subsequent research quantifying snake behaviour in response to snake ‘deterrents.' Re parrots, we (Heinsohn, Zdenek et al, 2017) identified the first known non-human animal to create a rhythmic beat, informing theories of the evolution of human rhythm cognition and rhythmic behaviours (Altmetric 744 (top 5%); 69 cit.). We (Heinsohn et al 2023) later showed individualistic patterns of rare sound tool design in a parrot, providing unique insights into animal behaviour and intelligence. Ecology: Dr Youngentob and I produced a ‘game-changer’ method for collecting leaves (or any sample) from the tops of trees. This enabled quantification of forage quality for koalas and informed conservation decisions in the Gold Coast and ACT regions. A co-authored paper of mine brought world attention to the rare behaviour (‘drumming’- beating a fashioned stick on a tree to make rhythm) of probably Australia's most difficult bird to study (pers. comm, Prof Rob Heinsoh, Difficult Bird Research Group), the Palm Cockatoo. This paper led to the species being featured in a blue-chip (highest possible quality) nature documentary by the BBC. Overall, 29.4% of my publications are in the top 10% most cited worldwide.

 

Research Impact Outside of Academia:

In 2015 and 2021, colleagues and I succeeded in nominating the increase of the conservation status of Palm Cockatoos twice at the state level. This Endangered-level status, in combination with my 2022 first-author paper (in Australian Field Ornithology) on the gold standard of Palm Cockatoo nest surveys, have resulted in the rejection of an unsatisfactory EIS (Environmental Impact Statement) for a large mine on Cape York (pers. anonymous employee at Dept. of Environment and Science). This paper, produced in collaboration with Rio Tinto (Australia’s 3rd largest materials company (ASX)), is now used for all of Rio Tinto’s ‘pre-clear’ (before land-clearing) ecological surveys for Palm Cockatoos during their mining operations on Cape York Peninsula, Qld. Moreover, I am a national leader in science communication, with over 50 radio interviews and 12 TV interviews in 2023 alone (reaching 4.1 billion people worldwide in that year), plus many long-standing, frequent and professional STEM education endeavours. I was also the 8th most read author in The Conversation from UQ (Sept. 2021 – Sept. 2022, The Conversation dashboard). My appointment in 2022–present as the Communications Officer for IUCN’s Snake Specialist Group increases the benefit of my snake-related expertise internationally.