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2026, Vol: 16, Issue: 8
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Case Report


First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies

Manuel Fuertes-recuero, Teresa Encinas Cerezo, Pablo Morón-elorza.


Abstract
Background:
Caudal autotomy and subsequent regeneration are widespread defensive strategies among lizards. However, abnormal regenerative outcomes, such as tail bifurcation, remain rare and poorly documented in many species, including Anolis spp.

Case Description:
In this case report, we present, to the best of the authors’ knowledge, the first documented observation of tail bifurcation in the Grenada bush anole (Anolis aeneus), an arboreal lizard endemic to Grenada and the Lesser Antilles. An adult individual with a regenerated, bifurcated tail was observed in a secondary tropical rainforest and agroforestry landscape in central Grenada. High-resolution field photographs allowed a detailed morphological assessment to be conducted. The tail regenerated from a proximal autotomy plane and subsequently bifurcated into two well-developed distal branches, displaying typical regenerated scalation and colouration. No external signs of recent injury, infection, or locomotor impairment were observed.

Conclusion:
The morphology of the anomaly is consistent with abnormal caudal regeneration following trauma or incomplete autotomy, rather than a congenital defect. This report adds to the list of Anolis species known to exhibit tail bifurcation, contributing to our understanding of lizard populations’ diversity and plasticity of regenerative responses in lizard populations.

Key words: Caribbean reptiles; Conservation; Insular lizards; Regenerative anomalies; Tail shedding.


 
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How to Cite this Article
Pubmed Style

Fuertes-recuero M, Cerezo TE, Morón-elorza P. First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies. Open Vet. J.. 2026; 16(8): 5874-5880. doi:10.5455/OVJ.2026.v16.i8.75

Web Style

Fuertes-recuero M, Cerezo TE, Morón-elorza P. First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies. https://www.openveterinaryjournal.com/?mno=307349 [Access: August 20, 2026]. doi:10.5455/OVJ.2026.v16.i8.75

AMA (American Medical Association) Style

Fuertes-recuero M, Cerezo TE, Morón-elorza P. First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies. Open Vet. J.. 2026; 16(8): 5874-5880. doi:10.5455/OVJ.2026.v16.i8.75


Vancouver/ICMJE Style

Fuertes-recuero M, Cerezo TE, Morón-elorza P. First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies. Open Vet. J.. (2026), [cited August 20, 2026]; 16(8): 5874-5880. doi:10.5455/OVJ.2026.v16.i8.75


Harvard Style

Fuertes-recuero, M., Cerezo, . T. E. & Morón-elorza, . P. (2026) First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies. Open Vet. J., 16 (8), 5874-5880. doi:10.5455/OVJ.2026.v16.i8.75


Turabian Style

Fuertes-recuero, Manuel, Teresa Encinas Cerezo, and Pablo Morón-elorza. 2026. First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies. Open Veterinary Journal, 16 (8), 5874-5880. doi:10.5455/OVJ.2026.v16.i8.75


Chicago Style

Fuertes-recuero, Manuel, Teresa Encinas Cerezo, and Pablo Morón-elorza. "First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies." Open Veterinary Journal 16 (2026), 5874-5880. doi:10.5455/OVJ.2026.v16.i8.75


MLA (The Modern Language Association) Style

Fuertes-recuero, Manuel, Teresa Encinas Cerezo, and Pablo Morón-elorza. "First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies." Open Veterinary Journal 16.8 (2026), 5874-5880. Print. doi:10.5455/OVJ.2026.v16.i8.75


APA (American Psychological Association) Style

Fuertes-recuero, M., Cerezo, . T. E. & Morón-elorza, . P. (2026) First report of tail bifurcation in the Grenada bush anole (Anolis aeneus) from Grenada, West Indies. Open Veterinary Journal, 16 (8), 5874-5880. doi:10.5455/OVJ.2026.v16.i8.75


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