A spate of recent attacks across NSW's beaches were all committed by bull sharks, which are larger in number after a big rainfall season.
Breakdown
- Bull shark attacks have increased concern from the mid-north coast to Sydney's suburbs 5s
- Scientists link shark activity spike to recent weather, not more sharks 28s
- Authorities deploy more drones and drumlines for monitoring northern beaches 54s
- Experts say shark nets and color deterrents are ineffective for safety 1m 6s
- Officials stress risk cannot be eliminated; improved warnings are needed 1m 20s