Grey Reef Shark

• GeneralIt adopts an exaggerated swimming posture as a warning before it attacks.
• Its Endangered category rests on the Global FinPrint project, which used baited cameras on 371 reefs in 58 countries: the global population has fallen by between 50 and 79% over three generations, some 44 years.
• It was absent from almost 20% of the reefs sampled, which points to local extinctions already complete.
• It is among the sharks whose threat display is best documented: it arches its back, lifts its snout and lowers its pectoral fins while swimming in a stiff, undulating fashion. If the intruder does not withdraw, it may attack.
• Despite its moderate size, it dominates other shark species on the reef through sheer aggression.
• It moves little, which makes marine reserves work well for it: those taking in more than 20 km of reef give it real protection.

Skeleton type

Vertebrate - cartilaginous skeleton (chondrichthyan fish)

Habitat & environment

Coral reefs and channels with strong currents

Sexual maturity

6 years

Litter / clutch size

4.1 (average)

Sources consulted: https://es.wikipedia.org/wiki/Carcharhinus_amblyrhynchos