Carcharhinus falciformis
Identification.
Slender, grey-bronze, open-ocean build. The shape of the first dorsal fin is the reliable way to tell it apart from the Galapagos shark.
Galápagos context.
Forty silky sharks have been satellite-tagged within the Galapagos Marine Reserve to study how long they stay within the Reserve's boundaries.
Encounter context.
Typically seen in open water near seamounts, sometimes in large schools.
Seasonality.
Present year-round.