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Animals publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Recent Advances in Mammary Tumors in Companion Animals

edited by Geovanni Dantas Cassali,

Valentina Zappulli

Carlos Eduardo Fonseca-Alves

and Giovanni Pietro Burrai

submission deadline 31 Oct 2026 | 1 articles | Viewed by 761 | Submission Open

Keywords: mammary tumors; companion animals; veterinary oncology; tumor pathology; molecular diagnostics; tumor microenvironment; histopathological evaluation; diagnostic advancements; prognostic markers; predictive markers

(This special issue belongs to the Section Companion Animals)

Feeding Strategies to Optimize Growth and Reduce Waste in Pigs

edited by

Anita Zaworska-Zakrzewska

and

Małgorzata Kasprowicz-Potocka

submission deadline 31 Oct 2026 | Viewed by 749 | Submission Open

Keywords: pig production strategies; pig feeding; reduction waste; optimize growth pigs; sustainable feed materials

(This special issue belongs to the Section Animal Nutrition)

Fatty Acids in Animal Health and Production

edited by Ewa Polawska

submission deadline 31 Oct 2026 | 1 articles | Viewed by 583 | Submission Open

Keywords: fatty acids; animal performance; health status; product quality

(This special issue belongs to the Section Animal Nutrition)

Pathology in Poultry Production

edited by

Michał Gesek

submission deadline 31 Oct 2026 | 1 articles | Viewed by 550 | Submission Open

Keywords: pathology; histopathology; emerging diseases; immunosuppression

(This special issue belongs to the Section Poultry)

Molecular Pathways of Fish Immune Responses

edited by

Yinnan Mu

and

Xiuzhen Sheng

submission deadline 31 Oct 2026 | 1 articles | Viewed by 399 | Submission Open

Keywords: aquaculture; fish; disease; immune; molecular mechanisms

(This special issue belongs to the Section Aquatic Animals)

Mustelid Behavior and Communication

edited by Cathy A. Johnson-Delaney

submission deadline 31 Oct 2026 | Viewed by 397 | Submission Open

Keywords: mustelids; ferrets; otters; behavior; mustelid vocalizations; mustelid medicine; conservation; environmental enrichment

(This special issue belongs to the Section Mammals)

The Use of Stable Isotopes in Zooarchaeology

edited by

Elizabeth Arnold

submission deadline 31 Oct 2026 | Viewed by 352 | Submission Open

Keywords: zooarchaeology; human– animal– environment relations; multi-isotope; interdisciplinary; food habits and culture; palaeoenvironment; domestication and animal management

(This special issue belongs to the Section Human-Animal Interactions, Animal Behaviour and Emotion)

Behavioral Mechanisms in Aquatic Animals: Advances in Aquaculture and Breeding

edited by

Lei Liu

and Tingting Lin

submission deadline 31 Oct 2026 | 1 articles | Viewed by 323 | Submission Open

Keywords: aquatic animal; animal behavior; aquaculture; behavioral mechanism; breeding; sustainable production; animal welfare

(This special issue belongs to the Section Aquatic Animals)

Diversity, Adaptation, and Biogeography of Gastropods

edited by

Andrzej Falniowski

submission deadline 31 Oct 2026 | Viewed by 316 | Submission Open

Keywords: phylogeny; morphology; anatomy; ethology; eco-physiology; ecology; origin of fauna; population genetics; human impact

(This special issue belongs to the Section Ecology and Conservation)

Advances in the Understanding of Testicular Function and Semen Quality in Male Ruminants Implications for Fertility Management

edited by

Serafeim Papadopoulos

submission deadline 31 Oct 2026 | Viewed by 278 | Submission Open

Keywords: male ruminants; testicular health; sperm function; semen quality; fertility; reproductive management; biotechnology; biomarkers; cryopreservation

(This special issue belongs to the Section Animal Reproduction)

Wildlife Health and Ecology: The Role of Pathogens and Parasites

edited by

Frine Eleonora Scaglione

submission deadline 31 Oct 2026 | Viewed by 262 | Submission Open

Keywords: wildlife disease; pathogen– host interactions; parasite dynamics; emerging infectious diseases; conservation and wildlife health

(This special issue belongs to the Section Ecology and Conservation)

Poultry Nutrition and Management: 2nd Edition

edited by

Guangtian Cao

and Caimei Yang

submission deadline 31 Oct 2026 | Viewed by 262 | Submission Open

Keywords: poultry; nutrition and management; welfare issues; multi-omics; antibiotic supplements; animal models; metabolism

(This special issue belongs to the Section Poultry)

Microbial Communities and Host Immunity for Resilient and Sustainable Aquaculture

edited by

Wanilada Rungrassamee

submission deadline 31 Oct 2026 | Viewed by 237 | Submission Open

Keywords: aquaculture; microbiome; probiotics; functional feeds; host immunity; disease; shrimp; fish; shellfish

(This special issue belongs to the Section Aquatic Animals)

Avian Gut Microbiomes

edited by Jing Liu

submission deadline 31 Oct 2026 | Viewed by 218 | Submission Open

Keywords: gut microbiota; poultry health; coccidiosis; necrotic enteritis; antibiotic alternatives; host– microbe interactions; probiotics and prebiotics; metagenomics; poultry nutrition; gut immunity

(This special issue belongs to the Section Birds)

Fertility Control in Female Livestock

edited by Qi Liu

submission deadline 31 Oct 2026 | Viewed by 212 | Submission Open

Keywords: female livestock; follicular development; oocyte maturation; reproductive stress; novel feed additives; follicular atresia; reproductive performance

(This special issue belongs to the Section Animal Reproduction)

Integrated Surveillance and Molecular Characterisation Unveiling the Epidemiology of Animal-Derived Zoonoses

edited by

David González-Barrio

submission deadline 31 Oct 2026 | Viewed by 206 | Submission Open

Keywords: zoonoses; integrated surveillance; molecular characterisation; epidemiology; One Health; whole-genome sequencing; animal-derived pathogens; public health

(This special issue belongs to the Section Veterinary Clinical Studies)

Biotechnological Applications for Sustainable Aquatic Animal Production

edited by

Yusuf Bozkurt

and

Nicolaia Iaffaldano

submission deadline 31 Oct 2026 | Viewed by 193 | Submission Open

Keywords: aquatic animal production; aquaculture biotechnology; genomics; molecular biology; health management; functional feeds; precision aquaculture; sustainability

(This special issue belongs to the Section Aquatic Animals)

Understanding Hornets (Vespa sp.): From Natural History to Societal Challenges

edited by Sandra V. Rojas-Nossa

submission deadline 31 Oct 2026 | Viewed by 171 | Submission Open

Keywords: Vespa sp.; biology; invasive species; management; one-health approach

(This special issue belongs to the Section Ecology and Conservation)

Animal Health: Potential Benefits of Edible Insects: Second Edition

edited by

Remigiusz Gałęcki

submission deadline 31 Oct 2026 | Viewed by 168 | Submission Open

Keywords: edible insects; domestic animals; animal nutrition; animal health; bioactive compounds; clinical evaluation; in vitro studies; animal gut health; functional ingredients; insect-delivered compounds; veterinary medicine

(This special issue belongs to the Section Animal Nutrition)

Children and Companion Animals: Psychosocial, Medical, and Neurobiological Implications

edited by Jessica Hill

submission deadline 31 Oct 2026 | Viewed by 160 | Submission Open

Keywords: children; companion animals; pets; emotional support; wellbeing

(This special issue belongs to the Section Human-Animal Interactions, Animal Behaviour and Emotion)

Pathology and Diagnosis of Infectious and Neoplastic Diseases in Wildlife: Morphological and Molecular Approaches

edited by Sang-Ik Park

submission deadline 31 Oct 2026 | Viewed by 157 | Submission Open

Keywords: wildlife; infectious diseases; neoplastic diseases; pathology and diagnosis

(This special issue belongs to the Section Wildlife)

Molecular Mechanisms and Regulation of Gonadal Development, Steroidogenesis and Reproductive Functions in Poultry

edited by

Agnieszka Grzegorzewska

and Mirosław Kucharski

submission deadline 31 Oct 2026 | Viewed by 154 | Submission Open

Keywords: avian embryogenesis; gonadal development; cell death; oxidative stress; reproduction environmental toxicants; nutritional supplements

(This special issue belongs to the Section Poultry)

Smart Nutrition as a Driver of Sustainable, Resilient, and Circular Aquaculture

edited by M.Angeles Gallardo Romero and

Irene García-Meilán

submission deadline 31 Oct 2026 | Viewed by 135 | Submission Open

Keywords: nutrition; bioactive compounds; prebiotics and probiotics; sustainability; waste valorization; by-products; circular economy; resilience; welfare; abiotic stressors

(This special issue belongs to the Section Aquatic Animals)

Genetic Characteristics, Physiological Regulation, and Production-Related Management of Autochthonous Breeds

edited by

András Gáspárdy

submission deadline 31 Oct 2026 | Viewed by 135 | Submission Open

Keywords: rare breed; preservation; diversity; physiological regulation; management; autochthonous breeds

(This special issue belongs to the Section Animal System and Management)

Physiology and Pathology of Pregnancy, Delivery and the Postpartum Period in Female Domestic Animals

edited by

Camila Infantosi Vannucchi

and Gisele Almeida Lima da Veiga

submission deadline 1 Nov 2026 | Viewed by 415 | Submission Open

Keywords: embryology; placenta; hormone; metabolism; dystocia; C-section; colostrum

(This special issue belongs to the Section Animal Reproduction)

Aging, Frailty, and Longevity in Companion Dogs and Cats

edited by

David J. Waters

submission deadline 1 Nov 2026 | Viewed by 364 | Submission Open

Keywords: companion dogs; cats; canine longevity; feline longevity; aging; ageing; frailty; anti-aging interventions; biomarkers; healthy aging; health span; life course perspective; senescence; trade-offs; multimorbidity; breed differences; sex differences

(This special issue belongs to the Section Veterinary Clinical Studies)

Advances and Challenges in Parasitic Diseases of Farm and Wild Animals

edited by Dadin Prando Moore and

Lucía María Campero

submission deadline 1 Nov 2026 | Viewed by 205 | Submission Open

Keywords: parasites; farm animals; wildlife

(This special issue belongs to the Section Veterinary Clinical Studies)

Animal Pain Management: Insights Across Companion, Farm, and Laboratory Animals

edited by Caterina Di Bella,

Luca Pennasilico

and

Elisa Silvia D'Urso

submission deadline 5 Nov 2026 | 1 articles | Viewed by 902 | Submission Open

Keywords: nociception; pain management; loco-regional anesthesia; analgesic therapies; regenerative medicine; small animals; large animals; laboratory animals

(This special issue belongs to the Section Veterinary Clinical Studies)

Diarrhea in Neonatal Ruminant Calves: Diagnosis and Treatment

edited by

Valentina Caprarulo

submission deadline 6 Nov 2026 | 2 articles | Viewed by 1869 | Submission Open

Keywords: neonatal calf diarrhea; diagnostics; therapeutics; probiotics; antimicrobial resistance; prevention; veterinary medicine; ruminant health

(This special issue belongs to the Section Cattle)

Clinical Management and Nutritional Regulation of Livestock Nutritional Metabolic Diseases

edited by Fan Yang

submission deadline 10 Nov 2026 | 1 articles | Viewed by 910 | Submission Open

Keywords: nutritional metabolic diseases; clinical management; nutritional regulation; metabolic biomarkers; transition cow

(This special issue belongs to the Section Animal Physiology)

Equine Cognition and Behavior in Human–Horse Interactions

edited by

Emily Kieson

submission deadline 10 Nov 2026 | 1 articles | Viewed by 645 | Submission Open

Keywords: affective state; welfare assessment; well-being indicators; horse– human relationship; equine-assisted ser-vices; behavioral indicators; equitation; cognitive bias; training and handling practices; ethograms

(This special issue belongs to the Section Equids)

Better Welfare, Better Science: Animal Care as a Driver of Reproducibility in Behavioral Neuroscience

edited by Paul B. Bernard

submission deadline 10 Nov 2026 | Viewed by 63 | Submission Open

Keywords: animal welfare; experimental reproducibility; confounding variables; stress; anxiety; housing; rodents; husbandry

(This special issue belongs to the Section Animal Welfare)

Advances in Research on Functional Genes and Economic Traits in Fish

edited by

Linna Wang

, Zhentong Li and Zhangfan Chen

submission deadline 13 Nov 2026 | 7 articles | Viewed by 7288 | Submission Open

Keywords: fish; functional genomics; functional genes; economic traits

(This special issue belongs to the Section Animal Genetics and Genomics)

Morphological and Physiological Research on Fish: Second Edition

edited by

Elena De Felice

and

Paola Scocco

submission deadline 15 Nov 2026 | 7 articles | Viewed by 11311 | Submission Open

Keywords: fish; anatomy; basic research; physiology; aquaculture

(This special issue belongs to the Section Aquatic Animals)

Working Equids: Welfare, Health and Behavior

edited by

Barbara Padalino

Christopher Riley

and Anna May

submission deadline 15 Nov 2026 | 3 articles | Viewed by 5855 | Submission Open

Keywords: working equids; carriage horses; donkey welfare; mule health; equine behavior; human– animal interaction; veterinary care; sustainable development

(This special issue belongs to the Section Animal Welfare)

Research on Fish Population Dynamics

edited by

Jie Cao

and Xiujuan Shan

submission deadline 15 Nov 2026 | 2 articles | Viewed by 2062 | Submission Open

Keywords: fish population dynamics; stock assessment; recruitment; mortality; fisheries modeling; sustainable management; spatial population ecology

(This special issue belongs to the Section Aquatic Animals)

Communities, Food Web, and Ecological Function of Soil Animals in Agricultural and Forest Land

edited by Liang Chang and

Pingting Guan

submission deadline 15 Nov 2026 | Viewed by 479 | Submission Open

Keywords: nematodes; Collembola; mites; soil invertebrate; earthworm; agriculture; crop

(This special issue belongs to the Section Ecology and Conservation)

Surveillance and Clinical Research on Bacterial Infections, Antibiotic Use, and Antimicrobial Resistance in Dairy Farms

edited by Essam M. Abdelfattah and

Raghavendra Amachawadi

submission deadline 15 Nov 2026 | Viewed by 167 | Submission Open

Keywords: antimicrobial use; antimicrobial resistance; antimicrobial stewardship; surveillance; One Health

(This special issue belongs to the Section Veterinary Clinical Studies)

Behavior, Cognition, and Welfare of Marine Mammals

edited by

Fabienne Delfour

submission deadline 15 Nov 2026 | Viewed by 142 | Submission Open

Keywords: marine mammals; behavior; cognition; welfare; conservation

(This special issue belongs to the Section Animal Welfare)

One Health Approaches to Wildlife Epidemiology: Integrating Human, Animal, and Environmental Health

edited by Anna Meredith

submission deadline 20 Nov 2026 | 2 articles | Viewed by 2657 | Submission Open

Keywords: wildlife; One Health; wildlife population health; epidemiology; zoonoses; surveillance; ecology

(This special issue belongs to the Section Wildlife)

Redefining Aquaculture Nutrition: Innovations in Novel Ingredients, Functional Feeds, and Precision Feeding

edited by

Luis Otávio Brito

and

Matheus Ramalho Lima

submission deadline 20 Nov 2026 | 1 articles | Viewed by 426 | Submission Open

Keywords: aquaculture nutrition; novel and sustainable feed ingredients; functional feeds and bioactive com-pounds; probiotics; prebiotics and synbiotics; mechanisms of action; precision nutrition and feeding; fish health and immunity; feed efficiency; digital technologies in aquaculture; sustainable aquaculture systems.

(This special issue belongs to the Section Aquatic Animals)

Animals in 2100

edited by

Clive J. C. Phillips

submission deadline 20 Nov 2026 | Viewed by 371 | Submission Open

Keywords: animals’ future; 21st century; wildlife; domestic animals; meat consumption; antimicrobial resistance; climate change

Respiratory Diseases in Farm Animals: Pathogenesis and Control Measures

edited by

Ioannis Arsenakis

and

Evangelos Zoidis

submission deadline 20 Nov 2026 | Viewed by 333 | Submission Open

Keywords: livestock; respiratory disease; pathogenesis; control; vaccination; antimicrobials; immune responses; maternal immunity; biosecurity; sensors; environmental stressors; management stressors

(This special issue belongs to the Section Veterinary Clinical Studies)

Smart Learning in Veterinary Science: From Clinical Cases to Digital Tools

edited by Lili Hao and Guangwen Yin

submission deadline 20 Nov 2026 | Viewed by 233 | Submission Open

Keywords: smart learning; veterinary education; digital tools; MOOCs; blended learning; AI-driven simulations; virtual reality (VR); clinical case-based training; One Health integration; digital competency; open access learning platforms

(This special issue belongs to the Section Veterinary Clinical Studies)

Evolution, Diversity, and Conservation of Herpetofauna: Third Edition

edited by Jianping Jiang,

Bin Wang

and

Wei Zhu

submission deadline 20 Nov 2026 | Viewed by 186 | Submission Open

Keywords: herpetology; amphibians; reptiles; zoology; adaptive evolution; biodiversity; biogeography; cladistics; conservation biology; ecology and evolution; environmental adaptation; environmental DNA; environmental stresses; evolution and development; evolutionary biology; genetics; genomics; meta-genomics; microbial symbioses; molecular phylogenetics; phylogeography; physiology and metabolism; population genetics; species diversity; systematics; systems biology; taxonomy

(This special issue belongs to the Section Herpetology)

Life Cycle Assessment for a Sustainable Livestock Production

edited by Ridha Ibidhi

submission deadline 20 Nov 2026 | Viewed by 90 | Submission Open

Keywords: life cycle assessment (LCA); livestock production; environmental impacts; greenhouse gas emissions; nutrient cycling and efficiency; sustainability

(This special issue belongs to the Section Animal System and Management)

Surveillance of Microbial and Parasitic Agents in Wildlife: Second Edition

edited by Matheus Weber and Mariana Soares Da Silva

submission deadline 25 Nov 2026 | 4 articles | Viewed by 6246 | Submission Open

Keywords: microbials; zoonosis; wildlife; pathogens; outbreaks

(This special issue belongs to the Section Wildlife)

Multi-Sensor Remote Sensing and Ecological Models for Bird and Wildlife Conservation

edited by