Series 3[]
Highly protective mothers: It's protective maternal instincts make them a force to be reckoned with,
68 dagger-like teeth: with 68 pointed teeth and forceful jaw muscles*
Powerful jaws snap shut in an instant: *that can snap rapidly shut on fish or much larger prey,
Orinoco croc "Deadly".
References:
Series 3: episode 15. South America 2