Thresher Sharks

Alopias, the thresher sharks, belongs to family Alopiidae (order Lamniformes) and comprisesthree extant species: A. vulpinus (common thresher), A. superciliosus (bigeye thresher) and A. pelagicus (pelagic thresher).They are distinguished by an extra‑long upper caudal lobe used to tail‑slap and...