Monster bull sharks lurk in the shallow waters off Africa's coast, while vicious tigerfish swim in the remote, murky rivers of the interior.

Amid the heavy rainfall and wild flash flooding smashing Sydney in the past 24 hours, experts warned it could be the perfect conditions for bull shark attacks.

People are being urged to exercise caution when going for a dip following a recent spate of shark attacks, as rainy weather ...

Due to their shallow coastal habitat and aggressive behavior, they are considered among the most dangerous sharks. Popular beach shut down after 'several' sightings of aggressive shark species — and ...