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 Galápagos Islands
hammerhead
Sphyrna zygaena
Whitetip Reef Shark
Triaenodon obesus
Requiem shark
Carcharhinus limbatus
Galápagos Shark
Carcharhinus galapagensis
Tiger Shark
Galeocerdo cuvier
Silky Shark
Carcharhinus falciformis
spotted houndshark
Triakis maculata
White-margin Fin Hound Shark
Mustelus albipinnis
Silvertip Shark
Carcharhinus albimarginatus
📅 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 Galápagos Islands?
About 44% of visitor-days record a Scalloped Hammerhead sighting in Galápagos Islands, based on 151 observer-days of citizen-science data from GBIF.
When is the best time to see Scalloped Hammerhead in Galápagos Islands?
March has the highest sighting rate for Scalloped Hammerhead in Galápagos Islands in our monthly data.