Scalloped Hammerhead
Sphyrna lewini
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassElasmobranchii
- OrderCarcharhiniformes (Ground Sharks)
- FamilySphyrnidae (Hammerhead and Winghead Sharks)
- GenusSphyrna (Hammerhead Sharks)
- SpeciesSphyrna lewini (Scalloped Hammerhead)
Closest Relatives at Isla del Coco National Park
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Isla del Coco National Park | 🇨🇷 Costa Rica | |
| 2 | Galápagos Islands | 🇪🇨 Ecuador | |
| 3 | Bahía de Loreto National Park | 🇲🇽 Mexico |
Quick answers
What are the chances of seeing a Scalloped Hammerhead in Isla del Coco National Park?
About 75% of visitor-days record a Scalloped Hammerhead sighting in Isla del Coco National Park, based on 9 observer-days of citizen-science data from GBIF.
When is the best time to see Scalloped Hammerhead in Isla del Coco National Park?
January has the highest sighting rate for Scalloped Hammerhead in Isla del Coco National Park in our monthly data.