Alopias superciliosus reaches 5 m. Bigeye thresher, mesopelagic. Extraordinarily large eyes (25 mm), adaptation to dim deep light. Dark gray, extremely long tail (>= 50% body). Patchy distribution: East Pacific, Indo-Pacific. Open-water-to-benthic hunter. Overfishing and bycatch = VU (IUCN). Rarely known even to deep-sea divers.
Photo of Bigeye Thresher Shark
Frequently asked questions
How big is the Bigeye Thresher Shark?
Bigeye Thresher Shark (Alopias superciliosus) reaches 180–500 cm in length.
At what depth can you find the Bigeye Thresher Shark?
Bigeye Thresher Shark is found between 0–250 m deep.
Is the Bigeye Thresher Shark dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Bigeye Thresher Shark?
IUCN status: Vulnerable (VU).
Where can you find the Bigeye Thresher Shark?
Found in: Asian Pacific, Caribbean, Eastern Pacific, Indian Ocean & Red Sea, Macaronesia, Mediterranean.