Start with the tail
Threshers are easiest to recognize from the long upper tail lobe, so this page is most useful alongside the broader thresher hub.
Species profile
Bigeye Thresher Shark
This profile is meant to make the bigeye thresher easier to place within the broader thresher group, especially when a reader is trying to separate it from pelagic and common threshers.
Thresher clusterComparison-readyIndex after rewrite
Use the species pages together
Readers usually need the pelagic and common thresher pages open nearby to turn this from a name into a usable field-guide comparison.
Keep the context narrow
This is a better fit for a focused thresher guide than for a general shark facts page.
At a glance
| Field | Value |
|---|---|
| Scientific name | Alopias superciliosus |
| Family | Alopiidae |
| Maximum length | 4.9 m max |
| Region notes | North Atlantic Ocean, European waters, North West Atlantic |
| Conservation status | Not listed in this offline release |
Useful next pages
Keep moving through the field guide with the pages that make this one more useful.
Thresher Sharks
The group-level guide for common, pelagic, and bigeye threshers.
Pelagic Thresher
A stronger reviewed profile inside the same cluster.
Pelagic Thresher vs Bigeye Thresher
A direct comparison page for one of the most useful confusions to solve.
Keep the guide offline
Pocket Shark is built as an offline shark field guide for iPhone and iPad, so the same comparisons, glossary notes, and species context can stay with you away from a browser.
Get the field guide on the App Store