Silky Shark Identification Guide
Spot the Silky Shark by its smooth, slender bronze body, small curved dorsal fin, and long, sickle-shaped pectoral fins.
Read the full Silky Shark encyclopedia entry →
Key identification features
- Slim, streamlined body with notably smooth, silky-textured skin
- Dark bronze-grey to grey-blue above, white below, with no bold fin markings
- Small, curved first dorsal fin with a rounded tip, set well behind the pectoral fins
- Long, narrow, sickle-shaped pectoral fins
- Typically 2-2.5 m (6.5-8 ft), a slender build overall
- Low ridge between the dorsal fins, though less pronounced than in some related requiem sharks
- Eyes are relatively large, an adaptation useful for its more oceanic, low-light habits
Common look-alikes
- Dusky shark: bulkier body and a larger, more triangular first dorsal fin positioned further forward.
- Oceanic whitetip shark: has large, rounded, white-mottled fin tips, unlike the Silky Shark's plain, unmarked fins.
- Galapagos shark: very similar shape, but has a taller first dorsal fin and a more prominent interdorsal ridge.
Where you'll see one
Silky Sharks are a wide-ranging, primarily oceanic species found in tropical and warm temperate waters worldwide, often near continental shelf edges, seamounts, and drifting objects far from shore rather than close to the coast, and are frequently spotted trailing schools of tuna in open water.
Frequently asked questions
How do I tell a Silky Shark from a Galapagos Shark?
The Galapagos Shark has a taller, more upright first dorsal fin and a stronger ridge between the dorsal fins, while the Silky Shark's first dorsal is smaller and more curved.
What does the Silky Shark's skin feel like compared to other sharks?
Its dermal denticles are unusually fine and closely packed, giving the skin a notably smooth, silky texture that inspired its name.