Early Animal Encyclopedias: Sharks 

Early Animal Encyclopedias: Sharks  — page 7
BIGEYE THRESHER SHARK Alopias superciliosus 10 Appearance Bigeye thresher sharks have large eyes They also have huge tail fins The tail fin can be as long as the shark's body Behavior These sharks stay near the ocean surface at night Bigeye threshers are not considered harmful to humans Length 11 to 16 feet 3.5 to 4.9 m Weight Up to 802 pounds 364 kg