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Contributors

💙 We are highly grateful to all participants who have taken the time to share their observations of anvil use by fish with us. The project wouldn’t be possible without them.

🚨 Last contribution

Thanks to our latest contributor!

Fish observed: Choerodon schoenleinii (Blackspot tuskfish)

Contributor: Naema Gros-Dubois

Location: Lizard Island, Australia

Choerodon schoenleinii

🥇 Top contributors

A big thank you to our most active contributors! Every observation helps build our understanding of the anvil-use behaviour in fish.

Contributor Number of reported observations Their social media
Sergio Floeter 6 Website – Instagram – Youtube
Susan Prior 6 Website: Norfolk Island’s Reef – Instagram
Jaqueline Toledo 5 Instagram – Lab website
Peter Wainwright 4 Lab website
Vasili Kasiutsich 3 Youtube channel
Joseph Gracia 3 Facebook
Thiago Fiuza 3 Lab website

👩👦🧓 Contributors

Please find below the list of contributors (a few of them chose to remain anonymous, so their names aren’t displayed). Some contributors are active ocean observers and photographers – check out their social media accounts for more ocean stories, photos, and videos.

Participant Their social media
Vasili Kasiutsich Youtube channel
Thiago Fiuza Lab website
Susan Prior Website: Norfolk Island’s Reef – Instagram
Sergio Floeter Website – Instagram – Youtube
Sam Shephard
Peter Wainwright Lab website
Peter Gosper
Pauline Fey
Patrick Burke
Olga Helmy Instagram
Nora Tripp
Naema Gros-Dubois
Michalis (Mike) Mihalitsis
Mariana Ughini Goldschmidt
Luiz Rocha
Luisa Fagundes Lab website
Louise de Beuzeville
Lisa Hodgson
Katherine Cure
Juliette Tariel-Adam
Joseph Gracia Facebook
John Smith Facebook page
Jessica Nguyen Nguyen et al. 2024 UNSW/UTAS
Jaqueline Toledo Instagram – Lab website
Isabelle Ng
Eduardo Sampaio
Daniel Cryan
Charlene at Dive Spirit Mauritius Instagram Dive center Instagram
Carolyn Solomon Instagram
Carlos Ferreira
Bridie Allan
Benoit Raillard
Bartosz Piotr Borawski, Christina Norman and Sly
Ana Gaisiner Instagram
Alejandra Puentes Sayo

PS: I am currently finishing to compile the observations I have received – apologies if your name isn’t yet displayed in the list. Your name should appear there by December 2026.

🐟 Fish species reported so far

Below is a list of species reported to be able to use rocks as tools by contributors. There are already so many species on the list. How many more will we discover?

Find more information about the fishes by following the links to FishBase, Wikipedia, or DORIS (in French), and more photos by following the links to iNaturalist.

Achoerodus viridis
Achoerodus viridis
Eastern blue groper
Photo credits: Janet Clough, CC BY-NC 4.0
Balistoides viridescens
Balistoides viridescens
Titan triggerfish
Photo credits: Ashley Parr, CC BY-NC 4.0
Bodianus pulchellus
Bodianus pulchellus
Spotfin hogfish
Photo credits: Frank Krasovec, CC BY-NC 4.0
Bodianus rufus
Bodianus rufus
Spanish hogfish
Photo credits: Lucas T Nunes, All rights reserved
Cheilinus fasciatus
Cheilinus fasciatus
Redbreasted wrasse
Photo credits: Sue Churchill, CC BY-NC 4.0
Cheilinus lunulatus
Cheilinus lunulatus
Broomtail wrasse
Photo credits: Nikolai Vladimirov, CC BY-NC 4.0
Cheilinus trilobatus
Cheilinus trilobatus
Tripletail wrasse
Photo credits: Erik Schlögl, CC BY-NC 4.0
Choerodon anchorago
Choerodon anchorago
Orange-dotted tuskfish
Photo credits: Andy Lewis, CC BY 3.0
Choerodon azurio
Choerodon azurio
Choerodon azurio
Photo credits: Izuzuki - http://www.izuzuki.com/, CC BY-SA 3.0
Choerodon graphicus
Choerodon graphicus
Graphic tuskfish
Photo credits: Graham Edgar, No licence
Choerodon rubescens
Choerodon rubescens
Baldchin groper
Photo credits: Martin Crossley, CC BY-NC-SA 4.0
Choerodon schoenleinii
Choerodon schoenleinii
Blackspot tuskfish
Photo credits: ajhg, CC BY-NC-ND 4.0
Coris aygula
Coris aygula
Clown coris
Photo credits: Francois Libert, CC BY-NC-SA 4.0
Coris bulbifrons
Coris bulbifrons
Doubleheader
Photo credits: John Turnbull, CC BY-NC-SA 4.0
Coris gaimard
Coris gaimard
African coris
Photo credits: ylsu, CC BY-NC 4.0
Coris picta
Coris picta
Comb wrasse
Photo credits: John Sear, CC BY-NC 4.0
Gomphosus varius
Gomphosus varius
Bird wrasse
Photo credits: Malcolm Francis, CC BY-NC 4.0
Halichoeres bivittatus
Halichoeres bivittatus
Slippery dick
Photo credits: Jason Headley, CC BY-NC 4.0
Halichoeres brasiliensis
Halichoeres brasiliensis
Brazilian wrasse
Photo credits: Gabriel Victorino, CC BY-NC 4.0
Halichoeres garnoti
Halichoeres garnoti
Yellowhead wrasse
Photo credits: Frank Krasovec, CC BY-NC 4.0
Halichoeres hortulanus
Halichoeres hortulanus
Checkerboard wrasse
Photo credits: Francois Libert, CC BY-NC 4.0
Halichoeres iridis
Halichoeres iridis
Rainbow wrasse
Photo credits: Rafi Amar, CC BY-NC 4.0
Halichoeres margaritaceus
Halichoeres margaritaceus
Pink-belly wrasse
Photo credits: Susan Prior, CC BY 4.0
Halichoeres penrosei
Halichoeres penrosei
NA
Photo credits: C. R. Pimentel, CC BY-NC 4.0
Halichoeres poeyi
Halichoeres poeyi
Blackear wrasse
Photo credits: Martin Holladay, CC BY-NC 4.0
Halichoeres radiatus
Halichoeres radiatus
Puddingwife wrasse
Photo credits: Pauline Walsh Jacobson, CC BY 4.0
Halichoeres trimaculatus
Halichoeres trimaculatus
Threespot wrasse
Photo credits: François Libert, CC BY-NC-SA 4.0
Notolabrus gymnogenis
Notolabrus gymnogenis
Crimsonband wrasse
Photo credits: acanthaster, CC BY-NC 4.0
Notolabrus tetricus
Notolabrus tetricus
Blue-throated wrasse
Photo credits: Gina, CC BY-NC 4.0
Novaculichthys taeniourus
Novaculichthys taeniourus
Rockmover wrasse
Photo credits: Mark Brown, CC BY-NC 4.0
Ophthalmolepis lineolata
Ophthalmolepis lineolata
Southern maori wrasse
Photo credits: Tony Strazzari, CC BY-NC 4.0
Pseudocheilinus hexataenia
Pseudocheilinus hexataenia
Sixline wrasse
Photo credits: François Libert, CC BY-NC-SA 4.0
Pseudocheilinus ocellatus
Pseudocheilinus ocellatus
Whitebarred pink wrasse
Photo credits: uwkwaj, CC BY-NC 4.0
Pseudolabrus guentheri
Pseudolabrus guentheri
Günther’s wrasse
Photo credits: Erik Schlögl, CC BY-NC 4.0
Pseudolabrus luculentus
Pseudolabrus luculentus
Orange wrasse
Photo credits: ajhg, CC BY-NC-ND 4.0
Pseudolabrus miles
Pseudolabrus miles
Scarlet wrasse
Photo credits: ajhg, CC BY-NC-ND 4.0
Thalassoma purpureum
Thalassoma purpureum
Surge wrasse
Photo credits: lizzydem, CC BY-NC 4.0