
Fox Shark
Alopias vulpinus
Also known as: Common Thresher, Grayfish, Swiveltail, Whip-Tailed Shark, Atlantic Thresher
About This Species
This pelagic species favors temperate to tropical coastal and oceanic waters, frequently occurring near continental shelves and offshore seamounts, where it hunts schooling fish and squid using its extraordinarily elongated upper tail lobe to stun prey. Watch for that distinctive scythe-like caudal fin breaking the surface, often accompanied by sudden, thrashing strikes amid baitfish schools, and keep an eye out for cooperative feeding behavior near the surface during active hunts. Prime viewing opportunities come aboard pelagic fishing or dive charters in late summer and autumn when warm-water prey aggregations peak, with early morning and overcast days tending to bring feeding activity closer to the surface.
Seasonal Activity
71,297 sightings · 2000–2026
Citizen science records via GBIF
Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Elasmobranchii
- Order
- Lamniformes
- Family
- Alopiidae
Photo
(c) arapp5, some rights reserved (CC BY-NC)
CC-BY-NC-4.0
Occurrence data from GBIF.